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CGP EDU Academic Team
Published on: August 14, 2026
1 mole of an ideal gas is allowed to expand isothermally at 27ºC till its volume is tripled . If the expansion is carried out reversibly then the Δ S universe will be ?
Text Solution
Verified by ExpertsThe correct answer is:
0
(0)
In isothermal reversible process.
Δ S = 
q = –w = 2.303 RT log 
= 2740.6 J/mole
Δ S surr. = 
= 9.135 J/K mole
Δ S surr. = – Δ S system = –9.135 JK –1 mole –1
Δ S universe = 0
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