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11.Thermodynamics
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A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then
A
Compressing the gas through adiabatic process will require more work to be done.
B
Compressing the gas isothermally or adiabatically will require the same amount of work.
C
Which of the case (whether compression through isothermal or through adiabatic process) requires more work will depend upon the atomicity of the gas.
D
Compressing the gas isothermally will require more work to be done.
(NEET-2016)
Solution
${V_1} = V,{V_2} = V/2$
$On\,P – V\,diagram,$
$Area\,under\,adiabatic\,curve>Area\,under\,isothermal\,curve,$
So compressing the gas through adiabatic process will require more work to be done.
Standard 11
Physics
