0.005 kg of copper was heated from 20°C to 80°C. How much energy was used to eat

Cu? (Specific heat capacity of Cu is 385 J/kg °C)

115.5 Joules

Explanation:

We are given;

Mass of copper as 0.005 kg Initial temperature as 20° C Final temperature as 80° C specific heat of copper as 385 J/kg°C

We are required to calculate the quantity of heat energy used

We know that, Q = m * c * ΔT

Change in temperature, ΔT = 80° C - 20° C

= 60 °C

Therefore;

Quantity of heat, Q = 0.005 kg * 385 J/kg/°C * 60° C

= 115.5 Joules

Thus, the heat energy used to heat copper is 115.5 Joules