Question

What is the overall enthalpy of reaction for the equation shown below?

3H2(g)+O3(g)(arrow)3H2O(g)

Answer 1

Step-by-step explanation:

Given component reaction as this

2H2(g)+O2(g)--------2H2O. ∆H =-

483.6kj----1

3O2(g)------2O3(g). ∆H= +284.6kj.---2

Calculating the o eral ethalpy for

3H2(g)+03(g)----3H2O(g)----3

Equation 3 can be found as this

3(1)-eqn 2/3

-3*483.6-284.6/2=-867.7kj

Answer 2

-867.7kj

Step-by-step explanation: