4.) The temperature of solid silver increases from 30C to 40C by the addition of 117.5 joules of heat. What is the mass of the silver?

The mass of silver is 49 g (0.049 kg).

Explanation:

Initial temperature = C

Final temperature = C

Quantity of heat required = 117.5 J

Specific heat capacity of silver = 0.240 J/g

mass of the silver can be determined by;

Q = mcΔθ

Where: Q is the quantity of heat required, m is the mass of substance, c is the specific heat capacity of the substance and Δθ is the change in temperature.

So that,

117.5 = m x 0.240 x (40 - 30)

117.5  = m x 0.24 x 10

        = 2.4m

m =

   = 48.9583

m ≅

m = 49 g

The mass of silver is 49 g (0.049 kg).