February 26, 2017

Homework Help: Chemistry- please help ASAP!!!! thank you

Posted by Annabelle on Sunday, October 31, 2010 at 6:09pm.

change in H(rxn)= -296.06 kJ/mol

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?

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