Question

21. A piece of metal with a a mass of 15.2 g is heated from 17°C to 42°C. In the process it absorbs 1362 J of

Answer 1

Answer:

3.58J/g°C is the specific heat of the metal

Explanation:

The specific heat of a material is defined as the energy that 1g of the material absorbs and produce the increasing in temperature in 1°C. The equation is:

Q = S*ΔT*m

Where Q is energy = 1362J

S is specific heat of the material

ΔT is change in temperature = 42°C - 17°C = 25°C

And m is the mass of the material = 15.2g

Replacing:

S = Q / ΔT*m

S = 1362J / 25°C*15.2g

3.58J/g°C is the specific heat of the metal