Question

Which of the following will favor a spontaneous change?
+ΔH
−ΔH
+ΔS
−ΔS
Answer

I only

II and IV

III only

II and III

Answer 1

Um... Which one is which lol is it order?
I
II
III
IV

Answer 2

I believe you have to base this using gibbs, because it can be spontaneous at various values under certain conditions and temperatures.

But, generally, when entropy is > 0 and enthalpy < 0, it is spontaneous at ALL temps.

Answer 3

However, you know that when \(\sf \Delta\)G < 0, it is spontaneous.

Answer 4

so the answer is what @abb0t

Answer 5

if memory serves then when ΔS is positive and ΔH is negative, a process is always spontaneous so im thinking its ll and lll

Answer 6

entropy > 0
enthalpy < 0

Answer 7

That is true, @VioletStargrazer but a process an also be spontenous when entropy < 0 and enthalpy < 0 under low temperature.s

Answer 8

But you are correct with your assumption. That is a general case.

Answer 9

thanks you abbot