Homework Help: Chemistry

Posted by Adam on Monday, October 18, 2010 at 6:01pm.

Shown below is the chemical equation for the thermal decomposition of calcium carbonate.

CaCO3(s) <-> CaO(s) + CO2(g)

H°rxn = 175 kJ

How will the amount (not concentration) of CaCO3(s) change with the following stresses?

CO2(g) is removed?
Decrease, Increase or No Change

CaO(s) is added?
Decrease, Increase or No Change

The temperature is increased.
Decrease, Increase or No Change

The volumes of the container is decreased.
Decrease, Increase or No Change

Chemistry - DrBob222, Monday, October 18, 2010 at 6:25pm
All of these questions are Le Chatelier's Principle. This really is a simple concept. Tell me what you don't understand about it and perhaps I can set you up to answer all of them.
Chemistry - hemlata, Monday, October 18, 2010 at 11:31pm
dont know

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