The temperature of a 21.6 g sample of a metal rises 6.04°C when 58.8 J of energy is applied to it. What is the identity of the metal?

Question

Quizplus · Accepted Answer

We can use the formula q = mCΔT, where q is the heat energy absorbed or released by the sample, m is the mass of the sample, C is the specific heat of the metal, and ΔT is the change in temperature of the sample.

Plugging in the given values, we get:

58.8 J = (21.6 g) (0.451 J/g°C) (6.04°C)

Simplifying this equation, we get:

58.8 J = 58.778 J

The calculated value is very close to the given value, indicating that our assumption of the metal being iron is correct.

Therefore, the identity of the metal is iron (choice C).

The Temperature of a 21