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Question 8.41

Posted: Sat Jan 13, 2018 5:12 pm
by Kyra LeRoy 1E
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!

Re: Question 8.41

Posted: Sat Jan 13, 2018 5:23 pm
by Jessica Yang 1J
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

Re: Question 8.41

Posted: Sat Jan 13, 2018 5:26 pm
by Andres Reynoso 1J
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.