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 wat

Question

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?

Question diagram: Two vessels A and B are connected via stopcock. The vessel A

Options:

Answer:

D

Solution:

It is free expansion of gas $\Rightarrow P_{ext} = 0$
Where $w = 0, q = 0$ and $Δ U = 0$

TestHub · Accepted Answer

It is free expansion of gas ⇒ P ext ​ = 0 Where w = 0 , q = 0 and Δ U = 0

Chemistry - Thermodynamics - I Question with Solution | TestHub

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