Friday
March 27, 2015

Homework Help: chemistry

Posted by Megan on Sunday, September 19, 2010 at 10:19pm.

2 NO2(g) N2(g) + 2 O2(g)

The ΔH for the reaction above is -66.4 kJ. The system is initially at equilibrium. What happens if N2 is added to the reaction mixture at constant temperature and volume?
The reaction absorbs energy.
The reaction releases energy.
[NO2] increases.
[NO2] decreases.
[NO2] remains constant.
[N2] increases.
[N2] decreases.
[N2] remains constant.
[O2] increases.
[O2] decreases.
[O2] remains constant.

I am so confused about how to do this. I put releases heat, NO2 increases, N2 increases, and O2 decreases.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Pchem - 2 NO2(g) N2(g) + 2 O2(g) The H for the reaction above is -66.4 kJ. ...
Chemistry*** - A mixture containing 19.8 moles of H2 and 7.2 mole of I2 was ...
(11) Chemistry - Science (Dr. Bob222) - In the following hypothetical reaction ...
Chemistry - Consider the reaction HCHO(g) *) H2(g) + CO(g). 1.0 mol of HCHO, 1.0...
Chemistry - Consider this equilibrium: N2O4(g) + heat NO2(g). Initially, a 1.0 L...
Chemistry - Consider this equilibrium: N2O4(g) + heat NO2(g). Initially, a 1.0 L...
Chemistry - Please help me with these problems, the book examples very different...
Chemistry - SO2(g) + NO2(g) SO3(g) + NO (g) At a given temperature, analysis of ...
chemistry - The following system is at equilibrium with [N2O4] = 0.55 M and [NO2...
Chem17 - Consider the following reaction at equilibrium: C(s) + H2O(g) CO(g) + ...

Members