Wednesday
April 23, 2014

Homework Help: chemistry

Posted by Yevette on Tuesday, October 27, 2009 at 2:34pm.

please assist me with this themochemistry question

Given the following data

CaCO3 (s)>>>>>>CaO (s) + CO2(g) (g) Delta H = -178.1 kj
C (s) + O2>>>>>>CO2 (g) Delta H = -393.5 kj

Calculate enthalpy in kj of the following reaction

CaCO3 (s)>>>>>>>>>CaO (s) + C (s) + O2 (g)

a) 215.4
b) 571.6
c) -215.4
d) -571.6
e) 178.

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