Q = cm t (raising water temperature -- answer given looks wrong)

Thread starter Stacie Worrel
Start date Apr 16, 2015
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Temperature Water

AI Thread Summary

The discussion revolves around the calculation of heat energy required to raise the temperature of water using the formula Q = cmΔt. The user questions the accuracy of the calculation, believing it should equal 2400 calories instead of 300 calories for raising 300g of water from 22°C to 30°C. Participants confirm that the specific heat capacity is indeed 1 cal/g°C and clarify the correct application of the formula. The correct calculation shows that Q = 300g * 1 cal/g°C * 8°C = 2400 calories, not 300. The initial assertion of 300 calories is incorrect based on the provided parameters.

Apr 16, 2015

Stacie Worrel

Hey ya'll my question reads:
Use the formula Q = cmt to show that 300 cal are requited to raise the temperature of 300g of water from 22 degrees C to 30 degrees C. For the specific heat capacity c, use 1 cal/g degrees C.

now i don't see how this math adds up, doesn't that equal 2400?

Thanks in advance!

Last edited by a moderator: Apr 16, 2015

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Apr 16, 2015

nasu

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It seems like you are right. Assuming you wrote the problem as it is in the source.

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