Ten moles of a diatomic perfect gas are allowed to expand at constant pressure. The initial volume and temperature are `V_0` and `T_0` respectively. If `7/2RT_0` heat is transferred to the gas, then the final volume and temperature are

Options

A. (a) `1.1 V_0, 1.1 T_0`
B. (b) `0.9V_0, 0.9T_0`
C. (c) `1.1V_0,10/11T_0`
D. (d) `0.9V_0,10/9T_0`

Answer

A

Explanation

`:'` `Q=nC_pDeltaT`
`7/2RT_0=(10)(7/2R)(T_f-T_0)`
`T_f=1.1T_0`
If p=constant, then `VpropT`
If temperature becomes 1.1 times, then volume will also become 1.1 times.