Published by:
CGP EDU Academic Team
Published on: August 13, 2026
An open vessel at 
is heated is heated until three-fifth of the air in it has been expelled. Assuming that the volume of the vessel remains constant, find the temperature to which the vessel has been heated?
A
B
500 K
C
D
750 K
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2019
At 
or 300 K number of moles of an ideal gas 
At 
number of moles of the ideal gas 
Number of moles escaped 
(Ideal gas equation)
At constant volume and pressure,
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