Sunday
March 1, 2015

Homework Help: Chemistry (Hess's Law)

Posted by Monty on Friday, April 15, 2011 at 1:52am.

NO2(g) → 1⁄2N2(g) + O2(g) ΔH1 = -33.9 kJ

NO2(g) → NO(g) + 1⁄2O2(g) ΔH2 = 56.5 kJ

What is ΔH for the reaction 1⁄2N2(g) + 1⁄2O2(g) → NO(g) ?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Please help me! I don't know how to do this at all. Calculate the ...
Chemistry - Calculate the enthalpy change for the reactions NO(g) + O(g) →...
algebra math - Which one of the following is a geometric sequence? A. 2, 3, 9&#...
chemistry - Use the standard reaction enthalpies given below to determine Δ...
Chemistry - Thermodynamics - Which one of the following reactions would you ...
Chem - Set up a Hesss law cycle, and use the following information to calculate...
Chemistry - Given 2Al(s) + 3/2O2(g) → Al2O3(s), ΔHf = -1,670 kJ/mol ...
Chemistry - Given the following hypothetical equations, 2A + B → 3C + 2D...
chemistry - Calculate the enthalpy change, ΔrH, for the following reaction...
Chemistry - What is the enthalpy change for the first reaction? Fe2O3(s) →...

Members