The standard heat of combustion of a solid boron is equal to:

The standard heat of combustion of solid boron is equal to

The standard heat of combustion of solid boron is equal to :

The standard heat of combustion of solid boron is equal to :

The heat of combustion is

Define heat of combustion.

Define heat of combustion.

The standard heat of combustion of graphite carbon is -393.5 kJ mol^(-1) . The standard enthalpy of CO_(2) is