Most Important Selected Qs for JEE AdvancedPhysicsThermodynamics
Paragraph: In the following P-V diagram, two adiabatics cut two isothermals at T₁ and T ₂ .2 moles of an ideal diatomic gas is taken through the cyclic process ABCDA. Question: The volumes at different points A, B, C & D are satisfy the following relation
Options
- AV _ A V _ B = V _ C V _ D
- BV _ A V _ C = V _ B V _ D
- CV _ A V _ D = V _ B V _ C
- DV _ A V _ C ^2= V _ B V _ D ^2
Correct answer
B. V _ A V _ C = V _ B V _ D
Step-by-step solution
T ₁ ~V _ B ^ -1 = T ₂ ~V _ C ^ -1 ( ~V _ B V _ C )^ -1 = T ₂ ~T ₁ ~T ₂ ~V _ D ^ -1 = T ₁ ~V _ A ^ -1 ( ~V _ A V _ D )^ -1 = T ₂ ~T ₁ ~V _ B V _ C = V _ A V _ D V _ A V _ C = V _ B V _ D