How much energy is gained by copper when 68.4 g of copper is warmed from 13.4 °C to 78.4 °C? The specific heat capacity of copper is 0.385 J/(g·°C).

Question

Quizplus · Accepted Answer

We can use the formula Q = mcΔT, where Q is the energy gained, m is the mass of copper, c is the specific heat capacity of copper, and ΔT is the change in temperature.

Plugging in the given values, we get:

Q = (68.4 g)(0.385 J/(g·°C))(78.4 °C - 13.4 °C)
Q = 1.71 × 10^3 J

Therefore, the energy gained by copper is 1.71 × 10^3 J, which corresponds to choice D.

How Much Energy Is Gained by Copper When 68