2. Kuchlanishni o’lchash uchun qaysi asbobdan foydalaniladi ? A dinamometr b ampermetr c voltmetr d elektrometr 3

8. Qancha neft yonganda 22000 J issiqlik ajraladi ? Neftning solishtirma yonish issiqligi 4,4∙10⁷ J/kg.
A) 0,2 kg B) 0,5 g C) 0,2 g D) 5 g
9. 1 kal energiya necha J ga teng ?
A) 19,5 B) 0,24 C) 4,2 D) 20,5
10. Adiabatik jarayon uchun termodinamikaning I – qonuni qanday ko’rinishga ega ?
A) U₁=U₂+A B) U₂=U₁+A C) A=ΔU D) ΔU=U₂-U₁
11. Moddaningsolishtima issiqlik sig’imini aniqlashda qaysi asbobdan foydalaniladi ?_________
12. Termodinamikaning birinchi qonuni formulasini yozing ____________________
13. Gazlarning universal doimiysiqanchaga teng ? ____________________ J/K∙mol
14. Gazning temperaturasini o’zgartirmagan holda bosimini 3 marta oshirish uchun hajmini qanday o’zgartirish kerak ? ____________________________
15. 297 K temperaturani ̊ C hisobida ifodalang ___________________


II – variant
1. Yoqilg’ining solishtirma yonish issiqligi xalqaro birliklar sistemasida qanday birlikda o’lchanadi ?
A) K B) J/K∙mol C) J/K D) J/kg
2. Izobarik jarayon uchun termodinamikaning I – qonuni qanday ko’rinishga ega ?
A) Q=ΔU+A B) Q=0 C) Q=ΔU D) Q=A
3. Izoxorik jarayonda qaysi kattalik o’zgarmas ?
A) gazning bosimi va temperaturasi B) gazning bosimi
C) gazning hajmi D) gazning temperaturasi
4. Adiabatik jarayonda qaysi kattalik nolga teng?
A) gazning bosimi B) gazning hajmi C) gazning temperaturasi D) issiqlik miqdori
5. Ideal gazning holat tenglamasi qaysi olimning nomi bilan ataladi ?
A) Mendeleyev B) Mendeleyev – Klapeyron C) Gey - Lyussak D) Boyl- Mariott
6. Moddaning solishtirma issiqlik sig’imi qanday birlikda o’lchanadi ?
A) J/kg B) J/ K C) J/mol∙K D) J/kg∙K
7. 1 J/mol∙K – qanday kattalikning o’lchov birligi ?
A) moddaning issiqlik sig’imi B) moddaning solishtirma issiqlik sig’imi
C) issiqlik miqdori D) gazlar universal doimiysi