JEE PHYSICS MCQ: THERMODYNAMICS

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Analyzing +4 | -1

An ideal monoatomic gas undergoes process

P V^{1.25}=

Constant . Then

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Correct option: D

Heat is absorbed by gas if volume increases

Heat is absorbed by gas if volume increases (Option D) because the process is polytropic with an index less than the adiabatic index, implying that as volume increases, temperature decreases, leading to heat absorption.

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The work done in which of the following process is zero? Water is used to cool the radiators of engines in cars because A gas expand

0.25\,\,{m^3}

at constant pressure

{10^3}N/{m^2},

the work done is A thermodynamic process in which temperature

T

of the system remains constant though other variable

P

and

V

may change, is called What is the slope for an isothermal process? For adiabatic processes

\left( {\gamma = \frac{{{C_p}}}{{{C_v}}}} \right)