Question

Assertion: Combustion of all organic compounds is an exothermic reaction. Reason: The enthalpies of all elements in their standard states are zero. *
1 point
a
b
c
d​

Answer 1

Both assertion and reason are true but the reason is not the correct explanation of assertion.

Explanation:

• When a combustion reaction takes place the enthalpy of the substances that is the enthalpy of reactants is always greater than the products.
• Enthalpy is the specific amount of heat that is produced when a combustion reaction of an organic compound takes place.
• Whne one mole of a chemical substance is completely burnt then the heat is exchanged between them known as enthalpy.