Question

The heat of combustion of benzene at 27°C
found by bomb calorimeter i.e. for the reaction
C6H6(l) + 7/2O2(g) →6CO2(g) + 3H20(l) is
780 K.Cal mol-1. The heat evolved on burning
39g of benzene in an open vessel wil be
1) 390 K.Cal 2 ) 780.9 K.Cal
3) 390.45 K.Cal 4) 780 K.Cal

Answer 1

The heat of combustion of benzene at 27°C

found by bomb calorimeter i.e. for the reaction

C6H6(l) + 7/2O2(g) →6CO2(g) + 3H20(l) is

780 K.Cal mol-1. The heat evolved on burning

39g of benzene in an open vessel wil be

1) 390 K.Cal

2 ) 780.9 K.Cal

3) 390.45 K.Cal ✔️✔️✔️

4) 780 K.Cal