Question

D?

Answer 1

as a hint - matter/energy tends towards *disorder* which is related to what thermodynamic concept?

Answer 2

starts with an e

Answer 3

entropy

Answer 4

SO A

Answer 5

not quite, it would be the opposite of decreasing entropy

so C

Answer 6

A

Answer 7

not 100% sure but that sounds like the best answer

Answer 8

Not sure about this one

Answer 9

you're given W = 120 and Qin = 400, use the equation e = W/Qin

Answer 10

A

Answer 11

good

Answer 12

C

Answer 13

good

Answer 14

A

Answer 15

good

Answer 16

D

Answer 17

ok I just looked it up - second law of thermodynamics says heat flows from hot to cold and the opposite is impossible so A not D

Answer 18

C

Answer 19

if something violates the second law of thermodynamics it would be impossible to happen :P you've seen water being frozen into ice in your freezer right?

which one of these scenarios would be impossible in real life?

Answer 20

oh A

Answer 21

good

Answer 22

i was thinking warm to cold that's why

Answer 23

UGh either a or d

Answer 24

disclaimer I know nothing about cars but I believe a car engine is a heat engine not a heat pump

Answer 25

just double checked, yeah it's a heat engine so A not D

Answer 26

B

Answer 27

good

Answer 28

D

Answer 29

entropy as a whole does not decrease

it's either A or B, which one is a true statement?

Answer 30

A

Answer 31

good