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CGP EDU Academic Team
Published on: August 14, 2026
The standard free energy change 
for 50% dissociation of N 2 O 4 into NO 2 at 27°C and 1 atm pressure is -x J moH. The value of x is _________. (Nearest Integer)[Given : R = 8.31 J K -1 mol -1 , log 1.33 = 0.1239 In 10 = 2.3]
Text Solution
Verified by ExpertsThe correct answer is:
710
(710)
N 2 O 4 
2NO 2
t = 0 1 mol
t = t (1-0.5) mol 0.5x2 mol
= 0.5 mol 1 mol
=1.33
=-710J/mol
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