Misalai 12 tambayoyi Dokokin Gas
1. A farkon tafiya, matsin lamba a cikin tayar mota shine 432 kPa tare da zafin jiki na 15 ° C. Bayan tafiya da sauri, tayar tana zafi kuma matsin lamba na iska ya zama 492 kPa. Idan aka yi watsi da faɗaɗa tayar , zafin iska a cikin tayar zai zama…
A. 17 o C
B. 35 o C
C. 55 o C
D. 155 o C
E. 328 o C
Tattaunawa
An san cewa:
Matsi na farko (P1 ) = 432 kPa
Matsi na ƙarshe (P2 ) = 492 kPa
Zafin farko (T1 ) = 15 oC
Tambaya: Zafin jiki na ƙarshe ( T2 )
Amsa:
Tsarin dokar Gay-Lussac (tsarin girma na isochoric ko na dindindin):
Amsar da ta dace ita ce A.
2. Iskar gas mai kyau tana cikin ɗaki mai rufewa mai girma V, matsin lamba P da zafin jiki T. Idan ƙarar ta canza zuwa sau ½ na asali kuma an ƙara zafin zuwa sau 4 na asali, to matsin lambar iskar gas ɗin da ke cikin tsarin zai zama ...
A. 8 P 1
B. 2 P 1
C. 1/2 P 1
D. 1/4 P 1
E. 1/8 P 1
Tattaunawa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V
Ƙarar gas ta ƙarshe (V2 ) = ½ V
Zafin iskar gas na farko (T1 ) = T
Zafin gas na ƙarshe (T2 ) = 4T
Matsin iskar gas na farko (P1 ) = P1
Tambaya : Matsin iskar gas na ƙarshe ( P2 )
Amsa :
Amsar da ta dace ita ce A.
3. Iskar gas mai kyau da farko tana mamaye sarari mai girman V a zafin T da matsin lamba P. Idan aka dumama iskar gas ta yadda zafin iskar gas zai zama 3/2 T kuma matsin lamba ya zama 4/3 P, to girman iskar gas zai zama….
A. 9/5 V
B. 5/3 V
C. 3/2 V
D. 4/3 V
E. 9/8 V
Tattaunawa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V
Zafin iskar gas na farko (T1 ) = T
Zafin gas na ƙarshe (T2 ) = 3/2 T
Matsin iskar gas na farko (P1 ) = P
Matsin gas na ƙarshe (P2 ) = 4/3 P
Tambaya : Jimlar gas ( V2 )
Amsa :
Amsar da ta dace ita ce E.
4. Iskar gas mai kyau da farko tana mamaye sararin samaniya mai girman V da matsin lamba na P. Idan zafin iskar gas ya zama 5/4 T kuma girmansa ya zama 3/4 V, to matsin ya zama ...
A. 3/4 P
B. 4/3 P
C. 3/2 P
D. 5/3 P
E. 2 P
Tattaunawa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V
Ƙarar gas ta ƙarshe (V2 ) = 3/4 V
Zafin iskar gas na farko (T1 ) = T
Zafin gas na ƙarshe (T2 ) = 5/4 T
Matsin iskar gas na farko (P1 ) = P
Tambaya : Matsin iskar gas na ƙarshe ( P2 )
Amsa :
Amsar da ta dace ita ce D.
5. Iskar gas mai kyau da farko tana mamaye sarari tare da girma V a zafin jiki T da matsin lamba P. Idan zafin iskar gas ya zama 3/2 T kuma matsin lamba ya zama 2 P, to girman iskar gas ɗin zai zama ...
A. 3/4 V
B. 4/3 V
C. 3/2 V
D. 3 V
E. 4 V
Tattaunawa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V
Zafin iskar gas na farko (T1 ) = T
Zafin gas na ƙarshe (T2 ) = 3/2 T
Matsin iskar gas na farko (P1 ) = P
Matsin gas na ƙarshe (P2 ) = 2P
Tambaya : Jimlar gas ( V2 )
Amsa :
Amsar da ta dace ita ce A.
6. Iskar gas mai kyau da farko tana mamaye sarari mai girman V a zafin jiki T da matsin lamba P. Idan zafin iskar gas ya zama 2T kuma matsin lamba ya zama 3/2 P, to girman iskar gas zai zama….
A. 3/4 V
B. 4/3 V
C. 3/2 V
D. 2 V
E. 3 V
Tattaunawa
An san cewa:
Ƙarar farko (V1 ) = V
Zafin farko (T 1 ) = T
Matsi na farko (P1 ) = P
Zafin ƙarshe (T2 ) = 2T
Matsi na ƙarshe (P2 ) = 3/2 P
Tambaya: Jimlar gas (V2 ) na ƙarshe
Amsa:
Amsar da ta dace ita ce B.
7. Akwai iskar gas da dama da suka dace a cikin ɗaki mai rufewa da farko a zafin jiki na 27°C. Don haka matsin lamba ya ninka na asali sau 4, to zafin ɗakin...
A. 108° C
B. 297° C
C. 300° C
D. 927° C
E. 1200° C
Tattaunawa
Rufe sarari = ƙarar da ta dace = tsarin isochoric
An sani cewa :
Zafin iskar gas na farko (T 1 ) = 27 o C + 273 = 300 K
Matsin iskar gas na farko (P1 ) = P
Matsin gas na ƙarshe (P2 ) = 4P
Tambaya : Zafin gas na ƙarshe ( T2 )
Amsa :
Amsar da ta dace ita ce A.
8. A cikin jirgin ruwa mai rufewa, girman iskar gas yana faɗaɗa zuwa sau 2 na girman farko (Vo = girman farko, Po = matsin lamba na farko) kuma zafin iskar gas ɗin yana ƙaruwa zuwa sau 4 na asali. Matsin iskar gas ɗin yana zama…
A. P o
B. 2 P o
C. 4 P o
D. 6 P o
E. 8 P o
Tattaunawa
Amsa :
Amsar da ta dace ita ce B.
9. Wani adadin iskar gas mai kyau yana fuskantar tsarin isothermal, don haka matsin lambar ya ninka matsin lamba na asali sau biyu, sannan ƙarar ta zama...
A. Sau 4 na asali
B. Sau 2 kuma
C. ½ sau na asali
D. sau ¼ na asali
E. har yanzu
Tattaunawa
Isothermic = yanayin zafi mai ɗorewa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V
Matsin iskar gas na farko (P1 ) = P
Matsin gas na ƙarshe (P2 ) = 2P
Tambaya : Jimlar gas ( V2 )
Amsa :
P 1 V 1 = P 2 V 2
PV = (2P) V 2
V = (2) V 2
V 2 = V / 2
V 2 = ½ V
Amsar da ta dace ita ce C.
10. Akwai iskar gas da dama da suka dace a cikin ɗaki mai rufewa da farko a zafin jiki na 27°C. Don haka matsin lamba ya ninka na asali sau 4, to zafin ɗakin...
A. 108° C
B. 297° C
C. 300° C
D. 927° C
E. 1200° C
Tattaunawa
Rufe sarari = ƙarar da ta dace = tsarin isochoric
An sani cewa :
Zafin iskar gas na farko (T 1 ) = 27 o C + 273 = 300 K
Matsin iskar gas na farko (P1 ) = P
Matsin gas na ƙarshe (P2 ) = 4P
Tambaya : Zafin gas na ƙarshe ( T2 )
Amsa :
Amsar da ta dace ita ce A.
1 1. A cikin jirgin ruwa mai rufewa, girman iskar gas yana faɗaɗa zuwa sau 2 na girman farko (Vo = girman farko, Po = matsin lamba na farko) kuma zafin iskar gas ɗin yana ƙaruwa zuwa sau 4 na asali. Matsin iskar gas ɗin yana zama…
A. P o
B. 2 P o
C. 4 P o
D. 6 P o
E. 8 P o
Tattaunawa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V o
Ƙarar gas ta ƙarshe (V2 ) = 2V o
Zafin iskar gas na farko (T1 ) = T
Zafin gas na ƙarshe (T2 ) = 4T
Matsin iskar gas na farko (P1 ) = P o
Tambaya : Matsin iskar gas na ƙarshe ( P2 )
Amsa :
Amsar da ta dace ita ce B.
1 2. Yawan iskar gas mai kyau yana fuskantar tsarin isothermal, don haka matsin lamba ya ninka matsin lamba na asali sau biyu, sannan ƙarar ta zama...
A. Sau 4 na asali
B. Sau 2 kuma
C. ½ sau na asali
D. sau ¼ na asali
E. har yanzu
Tattaunawa
Isothermic = yanayin zafi mai ɗorewa
An sani cewa :
Ƙarar iskar gas ta farko (V1 ) = V
Matsin iskar gas na farko (P1 ) = P
Matsin gas na ƙarshe (P2 ) = 2P
Tambaya : Jimlar gas ( V2 )
Amsa :
P 1 V 1 = P 2 V 2
PV = (2P) V 2
V = (2) V 2
V 2 = V / 2
V 2 = ½ V
Amsar da ta dace ita ce C.
Tushen tambaya:
Tambayoyin Nazarin Fizik na Ƙasa ga Makarantar Sakandare ta Babbar Sakandare/Makarantar Sakandare ta Sana'a
