00:02
Okay, in this one, we have a refrigerator with a coefficient of performance of three.
00:07
We have to assume that it's a carnot refrigerator because they don't give us any information to think otherwise.
00:13
We're told that tl, which is our cold temperature, is 22c, which is 295 kelvin.
00:29
And we want to find the, we want to find th.
00:41
Okay.
00:42
So we know the coefficient of performance for a car no refrigerator is given by tc or th minus tc or l.
00:58
Actually, i use l.
01:02
So we can't go any farther with this because we don't know what any of the cues are or the w.
01:09
So if we rearrange this, we can solve for th.
01:19
This, by the way, was three...