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4.0 g of gas occupies 22.4 litres at NTP...

4.0 g of gas occupies 22.4 litres at NTP . The specific heat capacityof the gas at constant volume is `5.0jk^(-1) mol ^(-1)`if the speed of sound in this gas at NTP is `952 ms^(-1)`, then the heat capacity at constant pressure is: (Take gas constant `R=8.3JK^(-1) mol^-1)`.

A

`8.5 JK^(-1) mol^(-1)`

B

`8.0 JK^(-1) mol^(-1)`

C

`7.5 JK^(-1) mol^(-1)`

D

`7.0 JK^(-1) mol^(-1)`

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