The specific heat of a material is the amount of energy required
A. to induce a phase change in the material.
B. to bring the material to 0°C.
C. to move it with a force of 1 N over a distance of 1 m.
D. to change 1 g of the material by 1°C or 1 K.

Specific Heat Capacity

Explanation:

It is the amount of energy required to raise the temperature of a substance by one degree Celsius. The specific heat capacity for water is one. As i said, heat is a form of thermal energy.

D. to change 1 g of the Material by 1 Degree Celsius or 1 kelvin

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3