1.

One mole of an ideal gas at temperature `T_` expands slowly according to the law `p/V=` constant. Its final temperature is `T_2`. The work done by the gas isA. `R(T_(2) - T_(1))`B. `2R(T_(2) - T_(1))`C. `R/2(T_(2) - T_(1))`D. `2R/3(T_(2) - T_(1))`

Answer» Correct Answer - C
`PV^(-1)=C`
Comparing `PV^(N) = C`
`N+-1`
`W=(nR(T_1-T_2))/(N-1) = (1xxR(T_1-T_2))/(-2)`
`W = (R(T_2-T_1))/(2)` .


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