How much heat energy in joules must be supplied to 14gms of nitrogen at room temperature to rise its temperature by `40^(@)C` at constant pressure? (Mol. Wt. of `N_(2)=28gm`, R=constant)A. 50 RB. 60 RC. 70 RD. 80 R

How much heat energy in joules must be supplied to 14gms of nitrogen a

1.	How much heat energy in joules must be supplied to 14gms of nitrogen at room temperature to rise its temperature by `40^(@)C` at constant pressure? (Mol. Wt. of `N_(2)=28gm`, R=constant)A. 50 RB. 60 RC. 70 RD. 80 R
Answer» Correct Answer - C `Here, " " DeltaT=40^(@)C` `C_(p)=(7)/(2)R` (for diatomic gases) Number of moles, `mu=(14)/(28)=(1)/(2)` Heat supplied at constant pressure , `Q=muC_(p)DeltaT` `rArr " " Q=(1)/(2)xx(7)/(2)Rxx40=70R`

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How much heat energy in joules must be supplied to 14gms of nitrogen at room temperature to rise its temperature by `40^(@)C` at constant pressure? (Mol. Wt. of `N_(2)=28gm`, R=constant)A. 50 RB. 60 RC. 70 RD. 80 R

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