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CGP EDU Academic Team
Published on: September 13, 2026
When a gas expands adiabatically
Text Solution
Verified by ExpertsThe correct answer is:
C
$\Delta Q = \Delta U + \Delta W = 0$ ⇒ ⇒ $\Delta W = - \Delta U$
if $\Delta W$ is positive i.e., gas does work then $\Delta U$ should be negative meaning internal energy is used in doing work.
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