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CGP EDU Academic Team
Published on: August 13, 2026
Match the thermodynamic processes given under Column I with the expression given under Column II:
Column I Column II
A
Freezing of water at 273 K and 1 atm (P) q = 0
B
Expansion of 1 mol of an ideal gas into a (Q) w = 0 vacuum under isolated conditions
C
Mixing of equal volumes of two ideal gases (R) 
sys < 0 at constant temperature and pressure in an isolated container
sys < 0 at constant temperature and pressure in an isolated container
D
Reversible heating of H 2 (g) at 1 atm from (S) 
U = 0 300 K to 600 K, followed by reversible cooling to 300 K at 1 atm (T) 
G = 0
U = 0 300 K to 600 K, followed by reversible cooling to 300 K at 1 atm (T) G = 0
Text Solution
Verified by ExpertsThe correct answer is:
A
(R, T); 
(P, Q, S); 
(P, Q, S); 
(P, Q, S, T)
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