For the reaction Hg ---------> Hg (), the entropy change will have the sign:
Negative
Positive
Both positive and negative
None of the above
In this reaction, liquid changes to more disordered gaseous state.
Consider the situation shown in figure. What are the signs of q1 and q2?
Choose the correct answer:
The product of two numbers is positive and their sum negative only when
A. both are positive
B. both are negative
C. one positive the other negative
D. one of them equal to zero