Sunday
August 31, 2014

Homework Help: Chemistry

Posted by Nick on Tuesday, October 9, 2007 at 5:32pm.

The combustion of carbon monoxide is represented by the equation below:

CO (g) + 1/2O2 (g) ----> CO2 (g)

a) determine the value of the standard enthalpy change, for the combustion of CO at 298 K using the following info.

C (s) + 1/2 O2(g) ----> CO (g)
delta H at 298K = -110.5 kJ/mol

C(s) + O2 (g) ----> CO2
delta H = -393.5 kJ/mol

so far i have:
1/2 C (s) + 1/4 O2 (g) ----> 1/2 CO

and C (s) + O2 (g) ----> Co2

I'm kind confused as to what i'm supposed to do and how i'm supposed to use the info. am i on the right track? if not, could you tell me how it works? thanks

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