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CGP EDU Academic Team
Published on: August 13, 2026
Two mole of an ideal gas is heated at constant pressure of one atomosphere from 27ºC to 127ºC. If C v,m = 20 + 10 –2 T JK –1 mol –1 , then q and Δ U for the process are respectively :
Text Solution
Verified by ExpertsThe correct answer is:
A
w = – nR Δ T = –2 × 8.314 × 100 = –1662.8 J
Δ U = n 
dT = 2 × 
(20 + 10 –2 T) dT = 
= 4700 J
4700 = q – 1662.8
∴ q = 6362.8 J.
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