Imibuzo emi-12 yesibonelo Imithetho Yegesi
1. Ekuqaleni kohambo, umfutho womoya ethayini lemoto ungama-432 kPa kanye nokushisa okungu-15 ° C. Ngemva kokuhamba ngesivinini esikhulu, ithayi liyashisa bese umfutho womoya uba ngu-492 kPa. Uma ukwanda kwethayi kunganakwa, izinga lokushisa lomoya ethayini liba…
A. 17 o C
B. 35 o C
C. 55 o C
D. 155 o C
E. 328 o C
Ingxoxo
Kuyaziwa ukuthi:
Ingcindezi yokuqala (P)1) = 432 kPa
Ingcindezi yokugcina (P)2) = 492 kPa
Izinga lokushisa lokuqala (T)1= = 15 oC
Kubuziwe: Izinga lokushisa lokugcina (T)2)
Impendulo:
Ifomula yomthetho kaGay-Lussac (inqubo ye-isochoric noma yevolumu engaguquki):
Impendulo efanele ngu-A.
2. Igesi efanelekile itholakala ekamelweni elivaliwe elinevolumu V, ingcindezi P kanye nezinga lokushisa T. Uma ivolumu ishintsha ibe yi-½ izikhathi zokuqala futhi izinga lokushisa lenyuka libe yizikhathi ezine zokuqala, khona-ke ingcindezi yegesi ohlelweni iba...
A. 8 P1
B. 2 P1
C. 1/2 P1
D. 1/4 P1
E. 1/8 P1
Ingxoxo
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = V
Umthamo wokugcina wegesi (V)2) = ½ V
Izinga lokushisa lokuqala legesi (T)1) = T
Izinga lokushisa lokugcina legesi (T)2) = 4T
Umfutho wegesi wokuqala (P)1) = P1
Kubuziwe : Umfutho wokugcina wegesi (P)2)
Jawab :
Impendulo efanele ngu-A.
3. Igesi efanelekile iqala ithathe isikhala esinevolumu V ekushiseni okungu-T kanye nengcindezi engu-P. Uma igesi ishiswa ngendlela yokuthi izinga lokushisa legesi libe ngu-3/2 T kanye nengcindezi iba ngu-4/3 P, khona-ke ivolumu yegesi iba….
A. 9/5 V
B. 5/3 V
C. 3/2 V
D. 4/3 V
E. 9/8 V
Ingxoxo
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = V
Izinga lokushisa lokuqala legesi (T)1) = T
Izinga lokushisa lokugcina legesi (T)2) = 3/2 T
Umfutho wegesi wokuqala (P)1) = P
Umfutho wokugcina wegesi (P)2) = 4/3 P
Kubuziwe : Umthamo wokugcina wegesi (V)2)
Jawab :
Impendulo efanele ngu-E.
4. Igesi efanelekile iqala ithathe isikhala esinevolumu V kanye nengcindezi P. Uma izinga lokushisa legesi liba ngu-5/4 T futhi ivolumu yalo iba ngu-3/4 V, khona-ke ingcindezi iba…
A. 3/4 P
B. 4/3 P
C. 3/2 P
D. 5/3 P
E. 2 P
Ingxoxo
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = V
Umthamo wokugcina wegesi (V)2) = 3/4 V
Izinga lokushisa lokuqala legesi (T)1) = T
Izinga lokushisa lokugcina legesi (T)2) = 5/4 T
Umfutho wegesi wokuqala (P)1) = P
Kubuziwe : Umfutho wokugcina wegesi (P)2)
Impendulo :
Impendulo efanele ngu-D.
5. Igesi efanelekile iqala ithathe isikhala esinevolumu engu-V ekushiseni kuka-T kanye nengcindezi engu-P. Uma izinga lokushisa legesi liba ngu-3/2 T futhi ingcindezi iba ngu-2 P, khona-ke ivolumu yegesi iba…
A. 3/4 V
B. 4/3 V
C. 3/2 V
D. 3 V
E. 4 V
Ingxoxo
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = V
Izinga lokushisa lokuqala legesi (T)1) = T
Izinga lokushisa lokugcina legesi (T)2) = 3/2 T
Umfutho wegesi wokuqala (P)1) = P
Umfutho wokugcina wegesi (P)2) = 2P
Kubuziwe : Umthamo wokugcina wegesi (V)2)
Impendulo :
Impendulo efanele ngu-A.
6. Igesi efanelekile iqala ithathe isikhala esinevolumu V ekushiseni kuka-T kanye nengcindezi ka-P. Uma izinga lokushisa legesi liba ngu-2T futhi ingcindezi iba ngu-3/2 P, khona-ke ivolumu yegesi iba….
A. 3/4 V
B. 4/3 V
C. 3/2 V
D. 2 V
E. 3 V
Ingxoxo
Kuyaziwa ukuthi:
Ivolumu yokuqala (V)1) = V
Izinga lokushisa lokuqala (T)1) = T
Izinga lokushisa lokugcina (T)2) = 2T
Ingcindezi yokugcina (P)2) = 3/2 P
Kubuziwe: Umthamo wokugcina wegesi (V)2)
Impendulo:
Impendulo efanele ingu-B.
7. Amagesi amaningi afanele atholakala ekamelweni elivaliwe ekuqaleni ekushiseni okungu-27°C. Ukuze ingcindezi ibe ngokuphindwe kane kunokuqala, khona-ke izinga lokushisa legumbi...
A. 108° C
B. 297° C
C. 300° C
D. 927° C
E. 1200° C
Ingxoxo
Isikhala esivaliwe = ivolumu engaguquki = inqubo ye-isochoric
Kuyaziwa ukuthi :
Izinga lokushisa lokuqala legesi (T)1= = 27oC + 273 = 300 K
Umfutho wegesi wokuqala (P)1) = P
Umfutho wokugcina wegesi (P)2) = 4P
Kubuziwe : Izinga lokushisa lokugcina legesi (T2)
Impendulo :
Impendulo efanele ngu-A.
8. Emkhunjini ovaliwe, umthamo wegesi uyanda uphindwe kabili kunomthamo wokuqala (V).o = ivolumu yokuqala, Po = ingcindezi yokuqala) bese izinga lokushisa legesi likhuphuka liphindwe kane kunelokuqala. Ingcindezi yegesi iba...
A. Po
B. 2 Po
C. 4 Po
D. 6 Po
E. 8 Po
Ingxoxo
Impendulo :
Impendulo efanele ingu-B.
9. Inani elithile legesi elifanele lidlula enkambisweni ye-isothermal, ukuze ingcindezi ibe kabili kunengcindezi yokuqala, bese ivolumu iba...
A. Okuyisiqalo okuphindwe kasithupha
B. Okuyisiqalo okuphindwe kahlanu
C. ...
D. ¼ izikhathi zokuqala
E. namanje
Ingxoxo
Isothermic = izinga lokushisa elingaguquki
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = V
Umfutho wegesi wokuqala (P)1) = P
Umfutho wokugcina wegesi (P)2) = 2P
Kubuziwe : Umthamo wokugcina wegesi (V)2)
Impendulo :
P 1 V 1 = P 2 V 2
I-PV = (2P) V 2
V = (2) V 2
V 2 = V / 2
V 2 = ½ V
Impendulo efanele ngu-C.
10. Amagesi amaningi afanele atholakala ekamelweni elivaliwe ekuqaleni ekushiseni okungu-27°C. Ukuze ingcindezi ibe ngokuphindwe kane kunokuqala, khona-ke izinga lokushisa legumbi...
A. 108° C
B. 297° C
C. 300° C
D. 927° C
E. 1200° C
Ingxoxo
Isikhala esivaliwe = ivolumu engaguquki = inqubo ye-isochoric
Kuyaziwa ukuthi :
Izinga lokushisa lokuqala legesi (T)1= = 27oC + 273 = 300 K
Umfutho wegesi wokuqala (P)1) = P
Umfutho wokugcina wegesi (P)2) = 4P
Kubuziwe : Izinga lokushisa lokugcina legesi (T2)
Impendulo :
Impendulo efanele ngu-A.
11. Emkhunjini ovaliwe, umthamo wegesi uyanda uphindwe kabili kunomthamo wokuqala (V).o = ivolumu yokuqala, Po = ingcindezi yokuqala) bese izinga lokushisa legesi likhuphuka liphindwe kane kunelokuqala. Ingcindezi yegesi iba...
A. Po
B. 2 Po
C. 4 Po
D. 6 Po
E. 8 Po
Ingxoxo
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = Vo
Umthamo wokugcina wegesi (V)2) = 2Vo
Izinga lokushisa lokuqala legesi (T)1) = T
Izinga lokushisa lokugcina legesi (T)2) = 4T
Umfutho wegesi wokuqala (P)1) = Po
Kubuziwe : Umfutho wokugcina wegesi (P)2)
Impendulo :
Impendulo efanele ingu-B.
12. Inani elithile legesi elifanele lidlula enkambisweni ye-isothermal, ukuze ingcindezi ibe kabili kunengcindezi yokuqala, bese ivolumu iba...
A. Okuyisiqalo okuphindwe kasithupha
B. Okuyisiqalo okuphindwe kahlanu
C. ...
D. ¼ izikhathi zokuqala
E. namanje
Ingxoxo
Isothermic = izinga lokushisa elingaguquki
Kuyaziwa ukuthi :
Umthamo wokuqala wegesi (V)1) = V
Umfutho wegesi wokuqala (P)1) = P
Umfutho wokugcina wegesi (P)2) = 2P
Kubuziwe : Umthamo wokugcina wegesi (V)2)
Impendulo :
P 1 V 1 = P 2 V 2
I-PV = (2P) V 2
V = (2) V 2
V 2 = V / 2
V 2 = ½ V
Impendulo efanele ngu-C.
Umthombo wombuzo:
Imibuzo Yefiziksi Yezivivinyo Zikazwelonke Zesikole Samabanga Aphezulu/Isikole Samabanga Aphezulu Sokufundela Umsebenzi
