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December 20, 2014

Homework Help: chemistry

Posted by seth on Saturday, August 15, 2009 at 10:17am.

In which one of the following processes is ΔH = ΔE?



a. 2HI(g) → H2(g) + I2(g) at atmospheric pressure.

b. Two moles of ammonia gas are cooled from 325C to 300C at 1.2 atm.

c. H2O(l) → H2O(g) at 100C at atmospheric pressure.

d. CaCO3(s) → CaO(s) + CO2(g) at 800C at atmospheric pressure.

e. CO2(s) → CO2(g) at atmospheric pressure.

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