What is the heat capacity?

Question

of the metal nickel if the temperature of a 32.2 gra, sample is increased 3.5° C when 50.0 joules of heat is added? Please tell me the work it took you to figure this problem out as well, thanks.

Answer 1

Heat capacity can be thought of as a resistance to temperature change. The higher the heat capacity a substance has, the more energy its going to require to change its temperature.

There are two ways of listing heat capacity, one is in joules per gram-kelvin, the other is in joules per mole-kelvin. Given the units in the problem, we're probably looking for the first.

And knowing what heat capacity's units are tells us what we need to do to figure it out: take the joules and divide it by the temperature change (celcius degrees are the same as kelvin degrees, as far as changes go) and then also by the grams:

50.0 J
------------------ = 50 / 112.7 = 0.44 J/g-K
32.2 g x 3.5 K

For the record, that's pretty much what the literature records as the heat capacity of nickel, so we probably got it right. Hope that helps!

Answer 2

Heat capacity is the amount of energy needed to raise one gram one degree C. If 50 joules raises 32.2 grams 3.5 degrees, then the answer is 50/32.2/3.5

Answer 3

Q=31.2gx50jx3.5 C put that in a calculator to get answer