Thermodynamics: JEE Main 2026 Physics question

JEE Main 2026 · 22 Jan, Morning shift · Q38

JEE Main 202622 Jan, Morning shiftPhysicsMediumThermodynamics163× since 2002

The volume of an ideal gas increases 8 times and temperature becomes

(1/4)^{\mathrm{th}}

of initial temperature during a reversible change. If there is no exchange of heat in this process (

\Delta Q=0

) then identify the gas from the following options (Assuming the gases given in the options are ideal gases):

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JEE Main 2026 Thermodynamics Question with Solution (22 Jan Morning shift, Q38) | JEE Arc

JEE Main 2026 · 22 Jan, Morning shift · Q38

JEE Main 202622 Jan, Morning shiftPhysicsMediumThermodynamics163× since 2002

The volume of an ideal gas increases 8 times and temperature becomes

(1/4)^{\mathrm{th}}

of initial temperature during a reversible change. If there is no exchange of heat in this process (

\Delta Q=0

) then identify the gas from the following options (Assuming the gases given in the options are ideal gases):