Classify the possible combinations of signs for a reaction's ∆H and ∆S values by the resulting spontaneity.

A) Spontaneous as written at all temperatures.
B) Spontaneous in reverse at all temperatures.
C) Spontaneous as written above a certain temperature.
D) Spontaneous as written, below a certain temperature.

1) ∆H = + // ∆S = +
2) ∆H = - // ∆S = +
3) ∆H = - // ∆S = -
4) ∆H = + // ∆S = -

I'm beyond confused. Please help!

1 c

2 a
3 d
4 b

Paige is correct

Thanks page

Thanks Paige.

Thanks Paige! :D

我叼你妈的,一个个都是谜语人?

i agree with 你爸爸

u dum maria

Spontaneous as written at all temperatures: delta H=- and delta S=+

Spontaneous in reverse at all temperatures: delta H=+ and delta S= -

Spontaneous as written above a certain temperature: delta H=+ and delta S=+

Spontaneous as written below a certain temperature: delta H=- and delta S= -

Both are wrong. The wiki-link is correct.

1)b
2)d
3)a
4)3