PP Presentation

Calc. DHrxn for S(s) + 3/2 O2(g) --> SO3(g)

knowing that

S(s) + O2(g) --> SO2(g) DH1 = -320.5 kJ

SO2(g) + 1/2 O2(g) --> SO3(g) DH2 = -75.2 kJ

Hess’s Law - a second example :

Previous slide

Next slide

Back to the first slide

View Graphic Version