Question

For the reaction annite + pyrope garnet -> phlogopite + almadine garnet, determine which of the two mineral pairs has the greatest entropy at 500 deg C.

Answer 1

@UnkleRhaukus @abb0t @aaronq

Answer 2

which is greater (354.9+260.76) [J/mol/K] * 500 [K]
or (319.66+342.6)[J/mol/K] * 500 [K]?

Answer 3

Oh wow, it's that easy??

Answer 4

what did you get for part v.?

Answer 5

Products

Answer 6

For vii, is the more stable one the one with the higher entropy?

Answer 7

Being the products again?

Answer 8

And for part vi, we would need to convert 500 deg C to 773.5 K, right?

Answer 9

less entropy, less chaos, more stability.

oh yes, you will have to convert it to kelvin; as you have

Answer 10

Right, thanks so much!

Answer 11

And if you dont mind me asking further of you, how do you find the equil constant for solids?

Answer 12

part iiiv

Answer 13

i think i remember that for solids, the constant is always = 1

Answer 14

That's what I thought too, so do you think part viii is 1?

Answer 15

hmm, it says 'calculate', so maybe it's not that simple

Answer 16

Yeah, that has me concerned as well.

Answer 17

maybe
1*1/1*1

Answer 18

lol, well, that is a calculation...

Answer 19

Any thoughts on ix?

Answer 20

It looks like to me it would be change in entropy over change in volume.

Answer 21

Does that sound correct to you?

Answer 22

i don't know about the Clapeyron Equation, but if the units workout, your probably on the right track

Answer 23

Yeah, it does :)

Answer 24

Thank you soooooo much for your help! I really appreciate it!

Answer 25

Yeah, it does :)