Question

The heat equation, as given in the introduction, can also be rearranged to calculate the mass or temperature change for a substance. Follow the same steps used to calculate the quantity of heat gained or lost, but when you solve the equation, the term for mass or temperature change must be isolated on one side of the equation.

What mass, in grams, of aluminum fins could 2300. J of energy heat from 13.43 ∘C to 22.62 ∘C ? Aluminum has a specific heat of 0.897 (J/g)⋅∘C.

Express your answer to three significant figures.

Answer 1

According to the question The heat equation, can rearranged to calculate the mass or temperature change for a substance

Given that-

Suppose the mass of Al is m gram

and the heat energy ,

Aluminum has a specific heat , s = 0.897 (J/g)⋅∘C

change in temperature   22.62 ∘C - 13.43 ∘C = 9.19 ∘C

substitute all these values into the equation (1)

the mass of aluminium  

Hence

answer to three significant figures.

mass, in grams, of aluminum will be 279 gram