How much heat is required to raise the temperature of a 1.15 kg piece of copper metal from 25.0 °C to 77.5 °C? The specific heat capacity of solid copper metal is 0.385 J/g-K.
A)2.32 × J
B)1.57 × J
C)23.2 J
D)6.38 × J
E)0.00638 J

Question

How much heat is required to raise the temperature of a 1.15 kg piece of copper metal from 25.0 °C to 77.5 °C? The specific heat capacity of solid copper metal is 0.385 J/g-K.
A)2.32 × J 
B)1.57 × J 
C)23.2 J 
D)6.38 × J 
E)0.00638 J

Quizplus · Accepted Answer

First, we need to calculate the amount of heat required to increase the temperature of copper from 25.0°C to 77.5°C.
Q = mcΔT, where Q is the amount of heat, m is the mass of the copper, c is the specific heat capacity of copper, and ΔT is the temperature change.
Substituting the values, we get:
Q = (1.15 kg) (0.385 J/g-K) (77.5°C – 25.0°C)
Q = 2.32 × 10^5 J
Therefore, the amount of heat required is 2.32 × 10^5 J. The correct answer is A.

How Much Heat Is Required to Raise the Temperature of a 1.15