Homework Help: chemistry

Posted by Carter on Saturday, February 23, 2013 at 10:52pm.

Calculate the change in entropy (ΔS˚) of reaction (J/K) for the equation as written.

BaCO3(s) → BaO(s) + CO2(g)

Table:

S° (J/(K mol))
BaCO3(s) = 112
BaO(s) = 70.3
CO2(g) = 213.7

So the answer is -41.7

I thought to find the entropy of reaction you subract the entropy of formation of the products from those of the reactants.

So I did:
(213.7+70.3)-112 = 172

What did I do wrong?

chemistry - DrBob222, Saturday, February 23, 2013 at 11:12pm
It looks ok to me.

Answer this Question

Related Questions

Chemistry - If BaCO3 is placed in an evacuated flask, what partial pressure of ...
Chemistry - Consider the following reaction occurring at 298K BaCO3(s)-> ...
chemistry - Data: 2Ba(s) + O2(g) ¡æ 2BaO(s) ∆H¡&...
Chemistry - Calculate the enthalpy (ΔHo) of reaction (kJ) for the ...
Chemistry URGENT! I really need help! - Consider the following reaction ...
chemistry - A chemist weighed out 5.31 g of a mixture containing unknown amounts...
Biochemistry - The malate dehydrogenase reaction, written in the direction as ...
Chemistry - Given the following hypothetical equations, 2A + B → 3C + ...
Science - A chemist weighed out 5.16 g of a mixture containing unknown amunts of...
Science - A chemist weighed out 5.16 g of a mixture containing unknown amunts of...

For Further Reading

First Name:
School Subject:
Answer: