1.

The molar specific heat of air at room temperature and 1 atm pressure is 25J K^(-1) mol^(-1). How much heat is required to heat the room through 10 kelvin at room temperature if 144gof air is present in room ? Vapour density of air =14.4

Answer»

<P>1250kJ`
25J
50J
1250J

Solution :`C_(p)=(q)/(T)`
or HEAT required `=` no. of moles `XX C_(p)xxT`
`=(14.4xx25 xx 10)/(14.4 xx 2 )=5 xx 25 xx 10=1250J`


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