Year 12s: what will be the first way you research your future options? >>

Temperature change to use when calculating energy transfer, given a graph

CaptainJackFail

Screen Shot 2017-05-05 at 5.37.35 PM.png

Answer is B, 52 celcius.

I got the answer as A initially because i subtracted 65 and 20.
Thanks in advance.

(edited 6 years ago)

Reply 1

CaptainJackFail

A closer look at graph:
Screen Shot 2017-05-05 at 6.07.25 PM.png

Reply 2

CaptainJackFail

~~Also... how tf can you even get 72 degrees celcius as your answer ? The max temp is at 65.. any logic behind that?~~
Screen Shot 2017-05-05 at 6.23.03 PM.png

Nevermind, I'm stupid, if the peak is extrapolated then the max temp would be 72 degrees, which is logical enough.

(edited 6 years ago)

Reply 3

CaptainJackFail

Ok, so I worked it out once again (by extrapolating), and found that highest temp is 72c, and since initial temp is 20c,
Temp change ; 72 - 20 = 52c
Can anyone confirm if this is the right method?