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. Izotermik jarayon uchun termodinamikaning I – qonuni qanday ko’rinishga ega ?
A) U₁=U₂+A B) Q=A C) Q=ΔU D) A=ΔU
11. 2 mol gaz 27 ̊ C temperaturada 100 kPa bosimga ega bo’lishi uchun qancha hajmni egallashi kerak ( m³ ) ? ______________
12. Gaz hajmining o’zgarishi bilan uning bosimi orasidagi ko’paytma qanday ataladi ? _____
13. Avogadro doimiysibilan Boltsmandoimiysiningko’paytma qanday ataladi ? ___________________________________________________
14. 1 kg massali modda temperaturasini 1 K ga oshirish uchun unga beriladigan issiqlik miqdori shu moddaning ______________________________________________________ deb ataladi.
15. 113 ̊ C temperaturani K hiisobida ifodalang ___________________