Find the molar enthalpy of formation for paraffin wax (C2H526)) given the following reaction C2H526) + 38 026) ► → 25 CO26) + 26 H, O)
A H = -14 800 kJ

The molar enthalpy of formation for paraffin wax  is  -2460.5 kJ

Explanation:

The balanced chemical reaction is,

The expression for enthalpy change is,

where,

n = number of moles

(as heat of formation of substances in their standard state is zero

Now put all the given values in this expression, we get

Therefore, the molar enthalpy of formation for paraffin wax  is -2460.5 kJ

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.