If 89J of heat are added to a pure gold coin with a mass of 20g , what is its temperature change? Specific heat capacity of gold is 0.128 J/g∘C.

Answer 1

To find the temperature change, we can use the formula:

q = mcΔT

where q is the heat added (89 J), m is the mass of the gold coin (20 g), c is the specific heat capacity of gold (0.128 J/g°C), and ΔT is the temperature change.

Rearranging the formula to solve for ΔT, we get:

ΔT = q / (mc)

Plugging in the values, we get:

ΔT = 89 J / (20 g * 0.128 J/g°C)

ΔT ≈ 34.57°C

The temperature change is approximately 34.57°C.