# Chemistry-College

posted by .

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 -

see above.

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### Chemistry

Can you help me with this question? Find the temp for conversion of monoclinic sulfur to rhombic sulfur. This is the data involved: Hf ° (kcal/mol) S(rhombic)=0 S(monoclinic)=0.30 S° (J/K mol) S(rhombic)=31.88 S(monoclinic)=32.55
2. ### Chemistry

Can someone help me with this question? Find the temp for conversion of monoclinic sulfur to rhombic sulfur. This is the data involved: Hf ° (kcal/mol) S(rhombic)=0 S(monoclinic)=0.30 S° (J/K mol) S(rhombic)=31.88 S(monoclinic)=32.55
3. ### chemistry

How to calculate enthalpy change of the following reaction?
4. ### Chemistry- please help ASAP!!!! thank you

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 …
5. ### Chemistry :(

Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -1601 kJ/mol 2Fe(s)+(3/2)O2(g)--->Fe2O3(s) change in H(rxn)= -821 kJ/mol Calculate the standard enthalpy change for the following reaction: 2Al(s)+Fe2O3(s)--->2Fe(s)+Al2O3(s) …
6. ### Chemistry-College

Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -1601 kJ/mol 2Fe(s)+(3/2)O2(g)--->Fe2O3(s) change in H(rxn)= -821 kJ/mol Calculate the standard enthalpy change for the following reaction: 2Al(s)+Fe2O3(s)--->2Fe(s)+Al2O3(s) …
7. ### Chemistry (Enthalpy)-College

Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -1601 kJ/mol 2Fe(s)+(3/2)O2(g)--->Fe2O3(s) change in H(rxn)= -821 kJ/mol Calculate the standard enthalpy change for the following reaction: 2Al(s)+Fe2O3(s)--->2Fe(s)+Al2O3(s) …
8. ### College (Enthalpy) - College

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 …
9. ### Chemistry

You wish to know the enthalpy change for the formation of liquid PCl3 from the elements shown below. P4(s) + 6 Cl2(g)--> 4 PCl3(l) ΔH°f = ?
10. ### College Chemistry.

During volcanic eruptions, hydrogen sulfide gas is released and is oxidized by the oxygen in the air yielding sulfur dioxide gas and water vapour. Calculate the standard enthalpy change for this reaction given the following: 3S(rhombic) …

More Similar Questions