deltaE = q + w

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On a video chad said that temperature is directly proportional to Energy through another formula that's not important to memorize. My question is that does the temperature have to be in Celsius or Kelvin? because a change from 1 Celsius to 2 Celsius is not considered doubled if temp was suppose to be in Kelvin ( 273 to 275)

When in doubt, use Kelvin.

The unit for temperature is Kelvin, using anything eles will give you incorrect results. The only time when it would be ok to use Celsius is when you're talking about temp differences and you're calculating Tf-Ti.

Originally Posted by milski

The unit for temperature is Kelvin, using anything eles will give you incorrect results. The only time when it would be ok to use Celsius is when you're talking about temp differences and you're calculating Tf-Ti.

You're back.

Originally Posted by MedPR

You're back.

Yes, mostly. Having to go to work sucks just as much as I remembered.

Originally Posted by milski

Yes, mostly. Having to go to work sucks just as much as I remembered.

Yea, the only thing keeping me going is knowing (hoping) that in a year I'll be able to quit and start med school!

I believe the formula you're referring to is
Q=mc(tf-ti)

Q= heat energy
M= mass
C= heat capactiy
tf-ti= change in temperature

In this case whether you use celsius or kelvin doesn't matter, 1 degree celsius change = 1 degree kelvin change.

But still, use kelvin when in doubt, because it's SI