Question

A silver ring has a mass of 138.45 g. how many calories of heat are required to increase the temperature from 11.8 c to 162.5 c?

Answer 1

A heat energy of 645

Answer 2

1160 calories

Step-by-step explanation:

The specific heat capacity of silver is 0.0558 cal·g⁻¹°C⁻¹. We can calculate the heat energy using the following equation:

Q = mcΔt = (138.45 g)(0.0558 cal·g⁻¹°C⁻¹)(162.5 °C - 11.8 °C)

Q = 1160 cal