How many joules of heat are necessary to raise the temperature of a 1.42 kg block of copper from 25.0 ° C to 88.5 ° C?
(Specific heat of copper = 0.385 J/g × ° C)

Question

Quizplus · Accepted Answer

To find the amount of heat necessary to raise the temperature of the copper block, use the formula $q = mc\Delta T$, where $q$ is the heat in joules, $m$ is the mass in grams, $c$ is the specific heat capacity, and $\Delta T$ is the change in temperature. First, convert the mass from kg to grams (1.42 kg = 1420 g), then calculate the change in temperature ($88.5 °C - 25.0 °C = 63.5 °C$). Plugging these values into the formula gives $q = 1420 \times 0.385 \times 63.5 \approx 34700 J$.

How Many Joules of Heat Are Necessary to Raise the Temperature