Question

which of the following lists the entropy of the substances in increasing (more positive) order correctly?...

which of the following lists the entropy of the substances in increasing (more positive) order correctly?

A. O2(g) <H2O(g)<CH4(g)<H2O(l)<NaNO3(s)
B. NaNO3(s)<O2(g)<CH4(g)<H2O(l)<H2O(g)
C. H2O(l)<NaNO3(s)<H2O(g)<CH4(g)<O2(g)
D.NaNO3(s)<H2O(l) <O2(g)<H2O(g)<CH4(g)
E. CH4(g)<H2O(g)<O2(g)<NaNO3(s)<H2O(l)

Please explain how you got the answer

Homework Answers

Answer #1

answer : D ).NaNO3(s) < H2O(l) < O2(g) < H2O(g) < CH4(g)

Explanation :

entropy is the disorderness or randomness of molecules.

randomness is more then entropy is more. that is positive.

solids has less randomness of molecules compared to liquids and gases.

liquids has less randomness than gases.

gases has high randomness. because the gap between molecules are more.

so

solids has less entropy than liquids and gases.

liquid has less entropy than gases.

the order of entropy increse:

solid < liquid < gas

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