Answered: Using Hess's law what is the H^orxn for…

Using Hess's law what is the H^orxn for the following reaction WO3(s)+3H2(g)-->W(s)+3H2O(g) 1) 2W(s) +3O2(g)-->2WO3(s) H^o1= -1685.8kj/mol 2) H2(g)+1/2O2(g)-->H2O(g) H^o2=-221.8 kj/mol

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter9: Energy And Chemistry

Section: Chapter Questions

Problem 9.53PAE: 9.53 Using these reactions, find the standard enthalpy change for the formation of 1 mol of PhO(s)...

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Question

Using Hess's law what is the H^orxn for the following reaction

WO3(s)+3H2(g)-->W(s)+3H2O(g)

1) 2W(s) +3O2(g)-->2WO3(s) H^o1= -1685.8kj/mol

2) H2(g)+1/2O2(g)-->H2O(g) H^o2=-221.8 kj/mol

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