Question 8.41

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Kyra LeRoy 1E
Posts: 52
Joined: Sat Jul 22, 2017 3:00 am

Question 8.41

Postby Kyra LeRoy 1E » Sat Jan 13, 2018 5:12 pm

When you set the heat in ice and water equal to each other, why is there a negative sign in front of heat(water)?

Thanks!

Jessica Yang 1J
Posts: 55
Joined: Fri Sep 29, 2017 7:03 am

Re: Question 8.41

Postby Jessica Yang 1J » Sat Jan 13, 2018 5:23 pm

While the ice cube is gaining heat from the water, the water is simultaneously losing the same amount of heat. The negative sign indicates the loss of heat

Andres Reynoso 1J
Posts: 30
Joined: Fri Sep 29, 2017 7:06 am

Re: Question 8.41

Postby Andres Reynoso 1J » Sat Jan 13, 2018 5:26 pm

There is a negative sign in front of the value for heat (water) because it is the heat lost from the initial sample of water that is being gained by the water of the ice cube. The negative sign indicates the loss of that heat.

Edit: I agree with Jessica above.


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