Thermodynamics Question 30
Question: One mole of helium is adiabatically expanded from its initial state $ (P _{i},V _{i},T _{i}) $ to its final state $ (P _{f},V _{f},T _{f}) $ . The decrease in the internal energy associated with this expansion is equal to
[SCRA 1994; BHU 2002]
Options:
A) Isothermal process
B) Isobaric process
C) Isochoric process
D) Adiabatic process
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Answer:
Correct Answer: D
Solution:
The process is very fast, so the gas fails to gain or lose heat. Hence this process is adiabatic
BETA
