Enthalpy

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Cristian Carrasco 1F
Posts: 52
Joined: Fri Sep 29, 2017 6:06 am

Enthalpy

Postby Cristian Carrasco 1F » Mon Jan 22, 2018 5:25 pm

when calculating heat released in a reactions and using q= MC x delta T, do we use moles or grams for M?

soniatripathy
Posts: 50
Joined: Thu Jul 13, 2017 2:00 am

Re: Enthalpy

Postby soniatripathy » Mon Jan 22, 2018 5:39 pm

This depends on the units of your heat capacity. If you are using molar heat capacity then use moles but if you are using specific heat capacity use grams since grams are in the units. Overall, just make sure to check that your units cancel out in the final answer.

Dang Lam
Posts: 55
Joined: Thu Jul 27, 2017 2:01 am

Re: Enthalpy

Postby Dang Lam » Tue Jan 23, 2018 11:46 am

it depends on the specific heat capacity. based on your equation, q=mc*deltaT, you would calculate q using the mass (m) of the substance


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