Question

When 9.2g ethanol was burnt in bomb
calorimeter in excess of oxygen 320 kJ heat
is liberated. Heat of combustion of ethanol at
constant volume and temperature (in kJ) is
1)-160 2) -320 3) -1600 4) 1600​

Answer 1

Explanation:

mass=9.2g

H=-320kj

molecular weight of ethanol=46g

heat of combustion =-320×1000×(46/9.2)

=-1600KJ