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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGEasy2 minPYQ_2020

PhysicsEasysingle choice

A gas is filled in a cylinder. Its temperature is increased by $20 %$ on the Kelvin scale and volume is reduced by $10 %$ . How much percentage of the gas has to leak for pressure to remain constant?

Options:

Answer:

Solution:

$V \propto μ T, \frac{90}{100}$ $V \propto μ^{'} \frac{6 T}{5}$

$\frac{μ^{'}}{μ} \times \frac{6}{5} = \frac{9}{10} o r \frac{μ^{'}}{μ} = \frac{9}{10} \times \frac{5}{6} = \frac{3}{4}$

Percentage of gas leaked out

$= \frac{μ - μ'}{μ} \times 100 = \frac{4 - 3}{4} \times 100 = 25$ $%$

Subject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: PYQ_2020

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