The enthalpies of combustion of C2H2 and C2H6 are -1301 kJ and -1561 5 kJ respectively the enthalpy of - Chemistry - Thermodynamics

Question

The enthalpies of combustion of C2H2 and C2H6 are -1301 kJ and
-1561 5 kJ respectively the enthalpy of formation of liquid water
is -286 kJ Calculate the enthalpy change for the reaction C2H2 +
2H2 â†’C2H6 Please explain the steps in
detail

Anuradha Puri · Accepted Answer

Given,

We have to find the enthalpy change for the following reaction:

By doing the following operations we will get equation 4: Equation (1) + 2xequation (3) - equation (2) Therefore,

The enthalpies of combustion of C2H2 and C2H6 are -1301 kJ and -1561.5 kJ respectively. the enthalpy of formation of liquid water is -286 kJ. Calculate the enthalpy change for the reaction C2H2 + 2H2 →C2H6....Please explain the steps in detail....