The specific heat of hydrogen gas at constant pressure is 
and at constant volume is 
If one kilogram hydrogen gas is heated from 
to 
at constant pressure, the external work done on the gas to maintain it at constant pressure is
A
cal
B
cal
C
cal
D
cal
Text Solution
Verified by ExpertsThe correct answer is:
B
From FLOT Δ Δ Q = Δ Δ U + Δ Δ W
Work done at constant pressure 
(As we know 
)
Also 
and 
⇒ ⇒ 
⇒ ⇒ 
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