Chemistry · 2025
JEE Main · 2 April 2025, Shift 1 · Q53
Two vessels A and B are connected via stopcock. The vessel A is filled with a gas at a certain pressure. The entire assembly is immersed in water and…
Two vessels A and B are connected via stopcock. The vessel A is filled with a gas at a certain pressure. The entire assembly is immersed in water and is allowed to come to thermal equilibrium with water. After opening the stopcock the gas from vessel A expands into vessel B and no change in temperature is observed in the thermometer. Which of the following statement is true ?Official answer
From NTA’s final answer key for this paper.
(4)
The pressure in the vessel B before opening the stopcock is zero
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.