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I don't understand how to use the Qwater= mwater ct equation

Posted: Sat Oct 17, 2015 2:02 pm
by deleted-311176
If anybody knows how to use the equation on this page or have any information for me, then I would really like it if you helped me. Here is the link to the equation and project I need to do. https://www.sciencebuddies.org/science- ... background

Re: I don't understand how to use the Qwater= mwater ct equation

Posted: Sat Oct 17, 2015 4:32 pm
by 324B21
Hi there.

So glad you decided to reach out! This is a great project that you will see again in a few more years so keep this project around for future reference!

I might need a bit more specificity though on where you are becoming confused.

Perhaps if this equation was explained a different way?

Q = Quantity of Heat (Released or Absorbed). Joules, calories or Btu.
m = Mass (grams) of substance being heated, cooled or changing state.
C = Specific Heat Capacity (J/g/°C; cal/g/°C; Btu/lb/°F).
(Also, Molar C = Molar Heat Capacity J/mol.K (or °C).
ΔT = Difference in Temperature.(ΔT°C; or ΔT°F).

If that doesn't help, here is a great video I found that will walk you through how to calculate.

https://www.youtube.com/watch?v=Ak7PN8tn4cU

Please write back if any other questions come up!

Elizabeth