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q=mCdeltaT

Posted: Sun Feb 10, 2019 11:10 pm
by Valeria Viera 1B
I’ve seen this equation written as q=nCdeltaT and q=mCdeltaT
Should we use moles or grams for this equation on the test?

Re: q=mCdeltaT

Posted: Sun Feb 10, 2019 11:12 pm
by Celeste 1I
Use the one that is easiest to use, I'm assuming. If they give you grams then use m and if they give you mols use n. Just make sure to then use the corresponding C. Write out your units to ensure you're getting the right answer and everything cancels out.

Re: q=mCdeltaT

Posted: Sun Feb 10, 2019 11:19 pm
by mahika_nayak_3L
Use either m or n depending on the units of the specific heat, C, that is given to you. That way your units can be consistent with one another and cancel out to give you a q value in terms of Joules.

Re: q=mCdeltaT

Posted: Tue Feb 12, 2019 2:29 pm
by MichelleRamirez_2F
If you are given moles then use n and molar heat capacity, nad if you are given mass (g) then use m and specific heat capacity of the substance.

Re: q=mCdeltaT

Posted: Tue Feb 12, 2019 3:32 pm
by IsabelLight2H
I would just make sure your final answer is in the units they ask for! Don't give moles if they ask for mass and vice versa!

Re: q=mCdeltaT

Posted: Wed Feb 20, 2019 11:33 pm
by Xingzheng Sun 2K
mC represents the specific heat capacity is measured in per unit of mass; nC means the specific heat capacity is measured per mole.

Re: q=mCdeltaT

Posted: Sun Feb 24, 2019 1:00 am
by Hadji Yono-Cruz 2L
Use whichever the question is asking for, but if you are not given the molar heat capacity then convert the moles into grams and use specific heat capacity.

Re: q=mCdeltaT

Posted: Sun Feb 24, 2019 8:38 am
by MichaelMoreno2G
What would be the final units for the equations? In other words, if we used moles, what would our final units be, and if we used m, what would our final units be? I get confused with the two.

Re: q=mCdeltaT

Posted: Mon Feb 25, 2019 9:58 am
by varunhariharan
The units either way should be in Joules because the moles/grams unit will be cancelled in the equation by the specific heat capacity.

Re: q=mCdeltaT

Posted: Fri Mar 15, 2019 6:31 pm
by yuetao4k
It depends on what units are given in the problem. Use whichever is simplest.

Re: q=mCdeltaT

Posted: Fri Mar 15, 2019 9:22 pm
by Nghi Nguyen 2L
i just look at the units for the specific heat, they should tell you to use grams or moles

Re: q=mCdeltaT

Posted: Sat Mar 16, 2019 10:31 pm
by Heidi Ibarra Castillo 1D
I assume if they give you grams you use m, if moles then youd use n.