The molar heat capacities at constant pressure (assumed constant with respect to temperature ) of A,B and C are in ratio 3:1.5:2.0. the enthyalpy change for the exothermic reaction `A+ 2B to 3c ` at 300k and 310 K is `Delta H_(300)` and `DeltaH_(310)` respectively then:

Options

A. `DeltaH_(300) gt DeltaH_(310)`
B. `DeltaH_(300) lt DeltaH_(310)`
C. `DeltaH_(300) = DeltaH_(310)`
D. if `T_(2) gt T_(1)` then `DeltaH_(310) gt DeltaH_(300)` and if `T_(2) lt T_(1)` then `DeltaH_(310) lt DeltaH_(300)`

Answer

C

Explanation

`because Delta_(r) C_(p)=0_(1) " " therefore DeltaH_(600)=DeltaH_(310)`