Homework Help: AP Chem

Posted by Lisa on Tuesday, February 26, 2013 at 1:31pm.

For the following equilibrium system, which of the following changes will form more CaCO3?
CO2(g) + Ca(OH)2(s) <--> CaCO3(s) + H2O(l)
deltaH(rxn) = -113 kJ

My choices are:
a) Decrease temperature at a constant pressure (no phase change)

B) Increase volume at a constant temperature

C) Increase partial pressure of CO2

D) Remove one-half of the initial CaCO3

I was thinking that it would be A, C, and D. Is that correct?

AP Chem - DrBob222, Tuesday, February 26, 2013 at 2:04pm
A and C are right. Removing 1/2 CaCO3 won't affect the equilibrium AS LONG AS there is a smidgen of CaCO3 solid present. A speck must be present to attain equilibrium; more or less than that has no effect.
AP Chem - Lisa, Tuesday, February 26, 2013 at 2:51pm
Is that because it's a solid and not a gas?

Answer this Question

Related Questions

chem - For the following equilibrium system, which of the changes will form more...
Chemistry - Consider the following equilibrium: CaCO3(s)<->Ca 2+(...
chemistry - Which of the changes will form more CaCO3 (more moles CaCO3)? CO2 + ...
9th grade chem - Using the following equation Ca(s) + 2C(s) --> CaC2(s...
chemistry - For the system H2(g) + CO2(g) <---> H2O(g) + CO(g) at ...
Chemistry - Ca(OH)2 reacts with CO2 to form CaCO3 and H2O. A. How many grams of ...
AP Chem - For the system CO(g) + H2O(g)<-->CO2(g) + H2(g) Kp is 1....
Chemistry(Please check) - The equilibrium constant, Kc for the system, CaO(s) + ...
AP Chemistry - For the system 2SO2(g) + O2(g) <--> 2SO3 (g), ...
chemistry - please assist me with this themochemistry question Given the ...

For Further Reading

First Name:
School Subject:
Answer: