Question

Assuming all the substances below have the same mass, which substance
below requires the least energy to raise its temperature by 7°C? Use the table
to help you answer the question.
Substance
Specific Heat
J/(kg )
900
Aluminum
Gold
Water
4.184
Wood
O
A. Gold
O
B. Aluminum
O C. Wood
O
D. Water

Answer 1

Answer:

Gold.

Explanation:

The specific heat is the measure to determine which material needs a lesser amount of energy to rise its temperature. Specific heats are described below:

Aluminium: $903\,\frac{J}{kg\cdot ^{\circ}C}$

Gold : $129\,\frac{J}{kg\cdot ^{\circ}C}$

Water: $4184\,\frac{J}{kg\cdot ^{\circ}C}$

Wood: $1300\,\frac{J}{kg\cdot ^{\circ}C}$

Gold reports the lowest specific heat and, hence, requires the least energy to raise its temperature 7°C.