Question

What amount of heat is required to raise the temperature of 25 grams of copper to cause a 15ºC change? The specific heat of copper is 0.39 J/gºC.

Answer 1

Answer:

146.25 J heat is require to cause the change of 15 °C.

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m × c × ΔT

Q = heat or energy in joule

m = mass of substance

c = specific heat of substance

ΔT = change in temperature

Given data:

Mass of copper = 25 g

Temperature change =ΔT= 15 °C

Specific heat of copper = 0.39 J/g.°C

Energy or joules require to increase the temperature Q = ?

Solution:

Q = m × c × ΔT

Q = 25 g × 0.39 J/g .°C × 15 °C

Q = 146.25 J