1.

One mole of an ideal monatomic gas undergoes a process described by the equation `PV^(3)`= constant. The heat capacity of the gas during this process isA. `2R`B. `R`C. `3/2R`D. `5/2 R`

Answer» Correct Answer - B
`PV^(x)` = constant (polytropic process)
Heat capacity in polytropic process is given by
`[C=C_(v)+(R)/(1-x)]`
Given that `PV^(3) = consta nt implies x=3` ..(1)
Also gas is monoatomic `f=3` ..(2)
BY formula
`C = (fR)/(2)+R/(1-x)`
`C = 3/2 R -R/2 = R`.


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