How many degrees can silver weighing 400 g be heated by adding 6.4 kJ of energy to it?

The amount of heat for heating silver can be calculated using the formula:
Q = C * m * ∆t, where Q is the required amount of heat (Q = 6.4 kJ = 6400 J), C is the specific heat capacity of silver (C = 250 J / (kg * K)), m is the mass of silver ( m = 400 g = 0.4 kg), ∆t – silver temperature change (ºС).
Let’s express and calculate the change in silver temperature:
∆t = Q / (C * m) = 6400 / (250 * 0.4) = 64 ºС.
Answer: Silver will heat up to 64 ºС.