Posted by **Lucy** on Sunday, October 31, 2010 at 7:11pm.

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?

## Answer This Question

## Related Questions

- Chemistry-College - S(rhombic)+O2(g)--->SO2(g) change in H(rxn)= -296.06 kJ/...
- Chemistry- please help ASAP!!!! thank you - S(rhombic)+O2(g)--->SO2(g) change...
- Chemistry - Can someone help me with this question? Find the temp for conversion...
- Chemistry - Can you help me with this question? Find the temp for conversion of ...
- College Chemistry. - During volcanic eruptions, hydrogen sulfide gas is released...
- 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 - You wish to know the enthalpy change for the formation of liquid ...
- Chemistry-College - Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn...
- Chemistry - Reposted: Use Hess's law to calculate the enthalpy change for the ...

More Related Questions