# A sample of an unknown substance has mass of 89.5 g. If 345.2 J of heat are required to heat the substance from 285 K to 305 K, what is the specific heat of the substance?

##### 1 Answer

Jun 17, 2016

#### Answer:

Q = m c

Rearrange to c = Q / (m

#### Explanation:

Q = 345.2J

m = 89.5 g

So

c = 345.2 / (89.5 x 20)

c = 0.193