Homework Help: Chemistry-College

Posted by Lucy on Sunday, October 31, 2010 at 7:04pm.

S(rhombic)+O2(g)--->SO2(g)
change in H(rxn)= -296.06 kJ/mol

S(monoclinic)+O2(g)--->SO2(g)
change in H(rxn)= -296.36 kJ/mol

1. Calculate the enthalpy change for the transformation. S(rhombic)-->S(monoclinic)

Our goal is to calculate the enthalpy change for the formation of monoclinic sulfur from the rhombic sulfur. To do soo, we must arrange the equations that are given in the problem in such a way that they will sum to the desired overall equation.

So which equation should be reversed: 1st or 2nd?

What is the sign of change in H for the reversed equation: positive or negative?

Chemistry-College - DrBob222, Sunday, October 31, 2010 at 7:58pm
see above.

Answer this Question

Related Questions

College (Enthalpy) - College - S(rhombic)+O2(g)--->SO2(g) change in H(rxn...
Chemistry- please help ASAP!!!! thank you - S(rhombic)+O2(g)--->SO2(g) ...
chemistry - How to calculate enthalpy change of the following reaction? : S + ...
Chemistry (Enthalpy)-College - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) ...
Chemistry-College - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H...
Chemistry :( - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn...
Chem - RXN #1: H2 (g) + O2 (g) --> H2O2 (l) ; delta-H =? Calculate the ...
Chemistry - Can you help me with this question? Find the temp for conversion of ...
Chemistry - Can someone help me with this question? Find the temp for conversion...
Chemistry - Calculate the enthalpy change for the reaction: 2S(s) + 3O2(g) --&...

For Further Reading

First Name:
School Subject:
Answer: