What amount of heat must be supplied to `2.0xx10^(-2)kg` of `N_(2)` (at room temperature) to raise its temperature by `45^(@)C` at constant pressure? Molecular mass of `N_(2)=28,R=8.3J"mole"^(-1)K^(-1)`

Explanation

`m=2xx10^(-2)kg`
`M=28,R=8.3J"mole"^(-1)K^(-1)`
Number of moles `mu=(m)/(M)=(2xx10^(-2))/(28)`
i.e. `mu=7xx10^(-4)`
For `N_(2),C_(p)=21.17(C_(P)=C_(V)+R=20.87+8.3)J"mole"^(-1)K^(-1)`
but `Q=mC_(P)Deltatheta=n(MC_(P))Deltatheta=n(C_(P))Deltatheta=7xx10^(-4)xx21.17xx45`
`Q=0.6668J=6.67xx10^(-1)J`