JEE PHYSICS MCQ: THERMODYNAMICS

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Application +4 | -1

A gaseous mixture enclosed in a vessel consists of

3 \mathrm{~g}

mole of a gas

X

with

\gamma=(5 / 3)

and some amount of gas

Y

with

\gamma=(7 / 5)

at a temperature

T

. The gases

X

and

Y

do not react with each other and are assumed to be ideal. If

\gamma

for the gaseous mixture is

\left(\frac{29}{23}\right)

, then the number of gram moles of the gas

Y

View answer and explanation

Correct option: A

0.5

Option A (0.5) is correct because the number of gram moles of gas Y is calculated using the mixture rule for specific heats.

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