19 mau laʻana o ke Kumumanaʻo Kinetic o nā Kinoea
1. ʻO ke kinoea kūpono i loko o kahi pahu pani i ka wā mua he kaomi P a me ka nui V. Inā hoʻonui ʻia ke kaomi kinoea i 4 mau manawa o ka mua a mau ka nui o ke kinoea, ʻo ka lakio o ka ikehu kinetic mua a me ka ikehu kinetic hope loa o ke kinoea he...
Pahana
Ua ʻike ʻia :
Kaomi mua (P1) = P
Kaomi hope loa (P2) = 4P
Ka nui mua (V1) = V
Ka leo hope loa (V2) = V
Ua nīnau ʻia Hoʻohālikelike ʻia o ka ikehu kinetic mua a me ka ikehu kinetic hope loa (EK)1 : EK2)
Pane :
ʻO ka pilina ma waena o ke kaomi (P), ka nui (V) a me ka ikehu kinetic (EK) o kahi kinoea kūpono :
Hoʻohālikelike ʻana o ka ikehu kinetic mua a me ka ikehu kinetic hope loa :
2. E hoʻoholo i ka ikehu kinetic translational awelika o nā molekala kinoea ma ka mahana o 57oC!
Pahana
Ua ʻike ʻia :
Mahana kinoea (T) = 57oC + 273 = 330 Kelvin
ʻO ke kūpaʻa o Boltzmann (k) = 1,38 x 10-23 Joule/Kelvin
Ua nīnau ʻia : ʻIke kinetic unuhi awelika
Pane :
Pilina ma waena ikehu kinetic a me ka mahana kinoea :
Ikehu kinetic unuhi awelika :
3. He kinoea ma ka mahana o 27oAia ʻo C i loko o kahi pahu pani. No ka hoʻonui ʻana i kona ikehu kinetic i ka pālua o kona ikehu kinetic mua, pono e hoʻomehana ʻia ke kinoea i ka mahana o...
Pahana
Ua ʻike ʻia :
Mahana mua (T1) = 27oC + 273 = 300 K
Ikehu kinetic mua = EK
Ikehu kinetic hope loa = 4 EK
Ua nīnau ʻia : Mahana hope loa (T2)
Pane :
ʻO ka mahana hope loa o ke kinoea he 600 K a i ʻole 327oC.
4. Aia ke kinoea kūpono i loko o kahi hakahaka paʻa. Hoʻomehana ʻia ke kinoea kūpono a hiki i ka piʻi ʻana o ka wikiwiki awelika o nā ʻāpana kinoea i 3 manawa o ka wikiwiki mua. Inā he 27 ka mahana mua o ke kinoeaoC, a laila ʻo ka mahana hope loa o ke kinoea kūpono he...
Pahana
Ua ʻike ʻia :
Mahana mua = 27oC + 273 = 300 Kelvin
Ka wikiwiki mua = v
Ka wikiwiki hope loa = 2v
Ua nīnau ʻia : Mahana hope loa o ke kinoea kūpono
Pane :
Ka wikiwiki awelika hope loa = 2 x Ka wikiwiki awelika mua
5. ʻEkolu mau mole o ke kinoea i loko o kahi lumi me ka nui o 36 lita. Loaʻa i kēlā me kēia mole kinoea ka ikehu kinetic o 5 x 10-21 Joule. ʻO ke kūpaʻa kinoea honua = 8,315 J/mol.K a me ke kūpaʻa Boltzmann = 1,38 x 10-23 J/K. E helu i ke kaomi kinoea i loko o ka lumi!
Pahana
Ua ʻike ʻia :
Helu o nā mole (n) = 3 mol
Ka nui = 36 lita = 36 dm3 = 36 x 10-3 m3
ʻO ke kūpaʻa o Boltzmann (k) = 1,38 x 10-23 J/K
Ikehu kinetic (EK) = 5 x 10-21 Joule
ʻO ke kūpaʻa kinoea honua (R) = 8,315 J/mol.K
Ua nīnau ʻia : kaomi kinoea (P)
Pane :
E helu i ka mahana (T) me ka hoʻohana ʻana i ke ʻano no ka ikehu kinetic kinoea a me ka mahana:
E helu i ke kaomi kinoea me ka hoʻohana ʻana i ke ʻano hana o ke Kānāwai Kinoea Ideal (ma ka helu o nā mole, n):
ʻO ke kaomi kinoea he 1,67 x 105 Pascal a i ʻole 1,67 lewa.
6. I loko o kahi ipu pani, hoʻonui ʻia ka nui o ke kinoea i 2 manawa o ka nui mua (Vo = ka nui mua, Po = kaomi mua) a piʻi ka mahana o ke kinoea i 4 manawa o ka mua. Lilo ke kaomi kinoea...
A.P.o
B. 2 Po
C. 4 Po
D. 6 Po
E. 8 Po
Pahana
Ua ʻike ʻia:
Ka nui mua o ke kinoea (V1) = Vo
Ka nui hope loa o ke kinoea (V2) = 2Vo
Ka mahana mua o ke kinoea (T1) = T
Ka mahana hope loa o ke kinoea (T2) = 4T
Kaomi kinoea mua (P1) = Po
Ua nīnau ʻia: Kaomi kinoea hope loa (P2)
Pane:
ʻO ka pane pololei ʻo B.
7. Ke hele nei kekahi nui o ke kinoea kūpono i kahi kaʻina hana isothermal, i lilo ai ke kaomi i 2 mau manawa o ke kaomi mua, a laila lilo ka nui...
A. 4 mau manawa kumu
B. ʻelua manawa hou
C. ½ manawa o ke kumu mua
D. ¼ manawa o ke kumu mua
E. ʻaʻole naʻe
Pahana
Isothermic = mahana mau
Ua ʻike ʻia:
Ka nui mua o ke kinoea (V1) = V
Kaomi kinoea mua (P1) = P
Kaomi kinoea hope loa (P2) = 2P
Ua nīnau ʻia: Ka nui hope loa o ke kinoea (V2)
Pane:
P1 V1 = P2 V2
PV = (2P) V2
V = (2) V2
V2 = V / 2
V2 = ½ V
ʻO C ka pane pololei.
8. I loko o kahi ipu pani, hoʻonui ʻia ka nui o ke kinoea i 2 manawa o ka nui mua (V o = ka nui mua, P o = kaomi mua) a piʻi ka mahana o ke kinoea i 4 manawa o ka mua. Lilo ke kaomi kinoea…
A.P.o
B. 2 Po
C. 4 Po
D. 6 Po
E. 8 Po
Pahana
Ua ʻike ʻia :
Ka nui mua o ke kinoea (V1) = Vo
Ka nui hope loa o ke kinoea (V2) = 2Vo
Ka mahana mua o ke kinoea (T1) = T
Ka mahana hope loa o ke kinoea (T2) = 4T
Kaomi kinoea mua (P1) = Po
Ua nīnau ʻia : Kaomi kinoea hope loa (P2)
Pane :
ʻO ka pane pololei ʻo B.
9. Ke hele nei kekahi nui o ke kinoea kūpono i kahi kaʻina hana isothermal, i lilo ai ke kaomi i 2 mau manawa o ke kaomi mua, a laila lilo ka nui...
A. 4 mau manawa kumu
B. ʻelua manawa hou
C. ½ manawa o ke kumu mua
D. ¼ manawa o ke kumu mua
E. ʻaʻole naʻe
Pahana
Isothermic = mahana mau
Ua ʻike ʻia :
Ka nui mua o ke kinoea (V1) = V
Kaomi kinoea mua (P1) = P
Kaomi kinoea hope loa (P2) = 2P
Ua nīnau ʻia : Ka nui hope loa o ke kinoea (V2)
Pane :
P1 V1 = P2 V2
PV = (2P) V2
V = (2) V2
V2 = V / 2
V2 = ½ V
ʻO C ka pane pololei.
10. Ua hoʻonohonoho ʻia ke kaomi o kahi kinoea kūpono i loko o kahi hakahaka pani e kūʻē i nā paia o ka paipu penei :
P = 2N / 3V EK
P = kaomi (Pa)
N = ka helu o nā molekole kinoea (nā ʻāpana)
V = ka nui o ke kinoea
EK = ka ikehu kinetic awelika o nā molekala (J).
ʻO ka ʻōlelo kūpono e pili ana i ke ʻano i luna nei…
A. Pili ke kaomi o ke kinoea e kūʻē i ka paia i ka helu o nā molekala no kēlā me kēia anakahi leo.
B. ʻAʻole hilinaʻi ka ikehu kinetic o ke kinoea i ke kaomi i hoʻokau ʻia e nā molekala ma nā paia.
C. ʻAʻole e loli ka nui o ke kinoea i loko o ka pahu inā e loli ke kaomi o ke kinoea.
D. E emi ana ka helu o nā molekala kinoea, no laila e piʻi aʻe ka ikehu kinetic o nā molekala.
E. Piʻi ka nui o ke kinoea, no laila piʻi ka helu o nā molekala kinoea.
Pahana
Ua pani ʻia ke keʻena i ʻole e loli ka nui o ke kinoea i loko o ka ʻōmole, ʻoiai ke loli nei ke kaomi kinoea.
ʻO C ka pane pololei.
11. Ua hoʻohālikelike ʻia ke kaomi o kahi kinoea kūpono i loko o kahi hakahaka pani e kūʻē ana i ka paia o ka paipu e like me P = (2N / 3V) EK. P = kaomi (Pa), N = helu o nā molekala ( nā ʻāpana) o ke kinoea a ʻo EK ka ikehu kinetic awelika o nā molekala (J). Ma muli o kēia kaulike, ʻo ka ʻōlelo pololei...
A. Pili ke kaomi o ke kinoea e kūʻē i ka paia i ka ikehu kinetic awelika o nā molekala.
B. Pili ka ikehu kinetic o ke kinoea i ke kaomi i hoʻokau ʻia e nā molekala ma nā paia.
C. E loli ka mahana o ke kinoea i loko o ka paipu inā loli ke kaomi o ke kinoea.
D. Inā e emi ana ka helu o nā molekala kinoea, e emi ana ka nui o ka ikehu kinetic o nā molekala.
E. Inā piʻi ka nui o ke kinoea, e emi ana ke kaomi o ke kinoea.
Pahana
Ua ʻike ʻia:
ʻO ke ʻano o ke kaomi: P = (2N / 3V) EK
P = kaomi
N = ka helu o nā molekala ʻāpana kinoea
V = ka nui o ke kinoea
EK = ikehu kinetic awelika
Ua kūlike pololei ʻo P me N a me EK
Ua like ʻole ʻo P me V
Ua kūlike pololei ʻo N me ka nui
Ua like ʻo N me EK ma ke ʻano kū'ē
Nīnau ʻia: ʻO wai ka ʻōlelo i pololei?
Pane:
Ua hewa ʻo A no ka mea ma muli o ke ʻano ma luna, pili ke kaomi kinoea (P) i ka ikehu kinetic, ʻaʻole i ka ikehu kinetic awelika.
Ua hewa ʻo B no ka mea, pili ke kaomi i ka ikehu kinetic o ke kinoea, ʻaʻole i ka ʻaoʻao ʻē aʻe.
Ua hewa ʻo C no ka mea ma muli o ke ʻano ma luna, ʻaʻole hilinaʻi ka mahana i ke kaomi.
Ua hewa ʻo D no ka mea ua like ʻo N me ka like ʻole o EK, ʻo ia hoʻi inā nui ʻo N a laila nui ʻo EK.
Pololei ʻo E no ka mea, ua like ke kaomi (P) me ka nui (V).
ʻO ka pane pololei ʻo E.
12. Inā ua kaomi ʻia (kaomi ʻia) kahi kinoea kūpono i loko o kahi ipu, e ʻike ke kinoea….
A. Ka emi ʻana o ka wikiwiki o ka ʻāpana
B. Ka emi ʻana o ka mahana
C. Piʻi ka mahana
D. Hoʻohui ʻia o nā ʻāpana kinoea
E. Ka hōʻemi ʻana o nā ʻāpana kinoea
Pahana
Ke kānāwai kinoea kūpono (ma nā mole) :
PV = nRT
Ke kānāwai kinoea kūpono (ma ka helu o nā molekala) :
PV = NkT
ʻO ka pilina ma waena o ka ikehu kinetic a me ka mahana kinoea :
EK = 3/2 kT
ʻIkepili:
P = kaomi, V = ka nui, T = mahana, n = helu o nā mole, N = helu o nā mole, R = paʻa kinoea honua, k = paʻa Boltzmann
Ma muli o nā ʻano hana ʻekolu i luna, ua huki ʻia nā hopena penei:
– Inā ua kaomi ʻia ke kinoea, e emi ana ka nui (V) o ke kinoea.
– Inā emi ka nui (V) o ke kinoea, piʻi aʻe ke kaomi (P) o ke kinoea a piʻi aʻe ka mahana (T) o ke kinoea.
– Ua pani ʻia ka lumi (ua paʻa ʻo V) no laila ʻaʻole e loli ka helu o nā mole o ke kinoea (n) a me ka helu o nā ʻāpana kinoea (N).
– Inā piʻi ka mahana (T) o ke kinoea, piʻi ka ikehu kinetic (EK) o ke kinoea. Inā piʻi ka ikehu kinetic o ke kinoea, piʻi ka wikiwiki o nā ʻāpana kinoea (EK = ½ mv 2 , v = wikiwiki).
ʻO C ka pane pololei.
13. Hoʻomehana ʻia kahi nui o ke kinoea kūpono i loko o kahi paipu pani ʻia i ka isochorically i piʻi ai kona mahana i ʻehā manawa o kona mahana mua. ʻO ka ikehu kinetic awelika o nā molekala kinoea kūpono he….
A. ¼ manawa o ke kumu mua
B. ½ manawa o ke kumu mua
C. E like me ma mua
D. ʻelua manawa hou
E. 4 mau manawa kumu
Pahana
ʻIsochoric = ka nui mau
Ua hōʻike ʻia ka pilina ma waena o ka ikehu kinetic awelika (EK) a me ka mahana (T) o ke kinoea e ka hoohalike ma lalo nei:
EK = 3/2 kT
Wehewehe: EK = ikehu kinetic, T = mahana, 3/2 = mau, k = mau Boltzmann.
Ma muli o kēia haʻilula, ʻike ʻia ua kūlike pololei ka ikehu kinetic me ka mahana. No laila, ʻo ke kiʻekiʻe o ka mahana, ʻo ka nui o ka ikehu kinetic. Inā hoʻonui ʻia ka mahana i ʻehā manawa, e hoʻonui pū ʻia ka ikehu kinetic i ʻehā manawa.
ʻO ka pane pololei ʻo E.
14. He kinoea kūpono me ke kaomi P a me ka leo V i loko o kahi hakahaka pani. Inā hoʻemi ʻia ke kaomi kinoea i loko o ka hakahaka i 1/4 o ka mua ma kahi leo mau, a laila ʻo ka lakio o ka ikehu kinetic ma mua a ma hope o ka hoʻemi ʻana o ke kaomi…
A. 1 : 4
B. 1 : 2
K. 2 : 1
D. 4 : 1
E. 5 : 1
Pahana
Ua ʻike ʻia :
Ka nui mua = V
Ka nui hope loa = V
Kaomi mua o ke kinoea = P
Kaomi hope loa o ke kinoea = ¼ P
Nīnau : hoʻohālikelike ʻana o ka ikehu kinetic mua a me ka ikehu kinetic hope loa (EK 1 : EK 2 )
Pane :
ʻO ka pilina ma waena o ke kaomi (P), ka nui (V) a me ka ikehu kinetic (EK) o ke kinoea:
Hoʻohālikelike ʻana o ka ikehu kinetic mua a me ka ikehu kinetic hope loa:
ʻO D ka pane pololei.
15. Ua hoʻohālikelike ʻia ka mahana o ke kinoea kūpono i loko o kahi paipu e like me EK = 3/2 kT, kahi e hōʻike ai ʻo T i ka mahana piha a me EK = ka ikehu kinetic awelika o nā molekala kinoea. Ma muli o ke kaulike ma luna…
A. ʻO ke kiʻekiʻe o ka mahana o ke kinoea, ʻo ka liʻiliʻi o kona ikehu kinetic.
B. ʻO ke kiʻekiʻe o ka mahana o ke kinoea, ʻo ka lohi o ka neʻe ʻana o nā ʻāpana kinoea.
C. ʻO ke kiʻekiʻe o ka mahana o ke kinoea, ʻo ka wikiwiki o ka neʻe ʻana o nā ʻāpana kinoea.
D. He kūlike ʻole ka mahana o ke kinoea me ka ikehu kinetic o ke kinoea
ʻAʻole hoʻopilikia ka mahana o ke kinoea i ka neʻe ʻana o nā ʻāpana kinoea.
Pahana
Ma muli o ke ʻano hana ma luna, ua kūlike pololei ka mahana me ka ikehu kinetic. ʻO ke kiʻekiʻe o ka mahana, ʻo ka nui o ka ikehu kinetic. Ua kūlike ka ikehu kinetic me ka wikiwiki o ka neʻe ʻana o nā ʻāpana kinoea (EK = ½ mv 2 , kahi ʻo EK = ikehu kinetic, v = wikiwiki). ʻO ka nui o ka ikehu kinetic, ʻo ka wikiwiki o ka neʻe ʻana o nā ʻāpana kinoea.
ʻO C ka pane pololei.
7. Nā kumu e hoʻohuli ai i ka ikehu kinetic o ke kinoea i loko o kahi hakahaka paʻa:
(1) kaomi
(2) ka nui
(3) mahana
(4) nā ʻano mea
ʻO ka ʻōlelo kūpono….
A. (1) a me (2)
B. (1) a me (3)
C. (1) a me (4)
D. (2) wale nō
E. (3) wale nō
Pahana
Ua pani ʻia ka hakahaka no laila ua mau ka nui o ke kinoea, ʻaʻole pili ka nui o ke kinoea i ka ikehu kinetic.
ʻO ka pane pololei ʻo B.
16. E hoʻolohe i ka ʻōlelo aʻe!
(1) Ua hoʻonui ʻia ka helu o nā ʻāpana kinoea
(2) Ua hoʻemi ʻia ka helu o nā mole
(3) Ua hoʻonui ʻia ka mahana
(4) Ua hoʻonui ʻia ka leo
ʻO nā mea e hiki ai ke hoʻonui i ke kaomi kinoea i loko o kahi pani ʻia e hōʻike ʻia e ka helu…
Pahana
ʻO ke kaulike no ke kaomi kinoea i loko o kahi hakahaka paʻa:
ʻIkepili:
P = kaomi, N = helu o nā molekala kinoea, m = nuipaʻa, v = wikiwiki awelika o nā molekala, V = ka nui o ka pahu, n = helu o nā mole.
Ma muli o ke kaulike ma luna,
Inā piʻi ka helu o nā ʻāpana kinoea (N), piʻi aʻe ke kaomi kinoea (P).
Inā hoʻemi ʻia ka helu o nā mole (n) a laila hoʻemi ʻia ke kaomi kinoea (P).
Inā hoʻonui ʻia ka mahana (T) a laila piʻi aʻe ke kaomi kinoea (P).
Inā piʻi ka nui (V), e emi ana ke kaomi kinoea (P).
No laila, ʻo nā kumu e hiki ai ke hoʻonui i ke kaomi kinoea i loko o kahi pani ʻia ʻo 1 a me 3.
17. Aia ke kinoea Argon i loko o kahi lumi pani i ka wā e loli ai ka mahana i ʻelua manawa o ka mua, a laila loli ka wikiwiki o ka neʻe ʻana o nā ʻāpana kinoea argon i ... manawa o ka mua.
Pahana
Ua ʻike ʻia:
Mahana mua = T
Mahana hope loa = 2T
Ka wikiwiki mua = v
Nīnau: ʻO ka wikiwiki hope loa = ….v
Pane:
ʻO ke ʻano hana no ka pilina ma waena o ka wikiwiki, ka ikehu kinetic awelika a me ka mahana kinoea:
ʻIkepili:
v = ka wikiwiki, k = ke kūpaʻa Bolztmann, T = ka mahana, m = ka nuipa
Ka wikiwiki mua:
Manaʻo ʻia ʻo k = 1, ʻo T = 1 a me m = 1.
Inā ʻo ka mahana hope loa = 2 a laila ʻo ka wikiwiki hope loa:
Ka wikiwiki hope loa = √2 manawa o ka wikiwiki mua.
18. ʻO kahi nui o ke kinoea monatomic kūpono i ka wā mua he 120 kPa ke kaomi. A laila, hoʻomehana ʻia ke kinoea ma ke kaomi mau i mea e hoʻonui ai. Manaʻo ʻia ua hōʻike ʻia ke ʻano mau o ke kinoea honua e like me R J.mol -1 .K -1 . Inā i ke kaʻina hana e piʻi ka mahana o ke kinoea i 38,4 / R Kelvin a ʻo ka hana no kēlā me kēia kmol i hana ʻia e ke kinoea e hoʻonui ai he 8,4 J, a laila ʻo ka nui mua o ke kinoea no kēlā me kēia kmol he ...
A. 210 cc
B. 225 cc
C. 235 cc
D. 240 cc
E. 250 cc
Pahana
Ua ʻike ʻia:
Kaomi (P) = 120 kPa = 120.000 Pascals
Paʻa kinoea honua = R
Mahana (T) = 38,4/R
Hana (W) no kilomol = 8,4 Joules
Nīnau ʻia: Ka nui mua (V 1 ) no kēlā me kēia kilomol
Pane:
E helu i ka leo hope loa (V 2 ):
PV 2 = n RT
120.000 (V 2 ) = R (38,4/R)
120.000 (V 2 ) = 38,4
V 2 = 38,4 /120.000
V 2 = 0,00032
V 2 = 0,32 x 10 -3 m 3 /kmol
V 2 = 0,32 x 10 -3 x 10 6 knm 3 /kmol
V 2 = 0,32 x 10 3 kenimika 3 /kmol
V 2 = 320 kenimika 3 /kmol
V 2 = 320 cc/kmol
E helu i ka nui mua (V 1 ):
W = P (V 2 – V 1 )
8,4 = 120 x 10⁻¹ ( 0,32 x 10⁻¹ - 3 – V⁻¹ )
8,4 = 120 x 10 3 x 0,32 x 10 -3 – (120 x 10 3 V 1 )
8,4 = 120 x 0,32 – (120 x 103 V1 )
8,4 = 38,4 – (120 x 103 V1 )
(120 x 103 V1 ) = 38,4 – 8,4
(120 x 10 3 V 1 ) = 30
V 1 = 30 / (120 x 10 3 )
V 1 = 0,25 x 10 -3 m 3
V 1 = 0,25 x 10 -3 x 10 6 kenimika 3
V 1 = 0,25 x 10 3 kenimika 3
V 1 = 250 kenimika 3
V 1 = 250 cc
ʻO ka pane pololei ʻo E.
19. Hiki ke manaʻo ʻia ke kinoea Argon he kinoea kūpono. I ka wā mua, loaʻa i ke kinoea ka ikehu kūloko E1 a me ka mahana T1Ke hana nei ke kinoea i kahi hana ma ka hana ʻana i ka hana W, e hoʻokuʻu ana i ka ikehu e like me Q a ʻo ke kūlana hope loa o ka ikehu kūloko ʻo E.f a me ka mahana TfUa hōʻike ʻia ka nui o ka loli ikehu ma ke kiʻi ma luna. He aha ka hopena o kēia kaʻina hana?
A. Ke hana nei ke kinoea i kahi kaʻina hana isobaric a ʻo T f < T i
B. Ke hana nei ke kinoea i kahi kaʻina hana adiabatic a ʻo T f < T i
C. Ke hana nei ke kinoea i kahi kaʻina hana isochoric a ʻo T f < T i
D. Ke hana nei ke kinoea i kahi kaʻina hana isothermal a ʻo T f = T i
E. Ke hana nei ke kinoea i kahi kaʻina hana isochoric a ʻo T f = T i
Pahana
Ma muli o ke kiʻi, ʻaʻole e loli ka ikehu mua (E i ) a me ka ikehu hope loa (E f ), ʻo ia hoʻi, ʻo ka loli o ka ikehu kūloko he ʻole. ʻO ke ʻano hana no ka loli o ka ikehu kūloko: ΔU = 3/2 N k ΔT
Ma muli o kēia haʻilula, inā ʻole ka loli o ka ikehu kūloko (ΔU=0), a laila ʻo ka loli o ka mahana he ʻole nō hoʻi (ΔT=0). ʻO ka loli o ka mahana ʻole, ʻo ia hoʻi, ʻaʻole i loli ka mahana. Inā ʻaʻole i loli ka mahana, ke hele nei ke kinoea i kahi kaʻina hana isothermal.
ʻO D ka pane pololei.
Puna nīnau:
Nā Nīnau Hoʻokolohua Lahui no ke Kino no ke Kula Kiʻekiʻe/Kula Kiʻekiʻe ʻOihana
