Answer:
1185.0 J.
Step-by-step explanation:
- The amount of heat needed to accomplish this process can be calculated using the formula:
Q = m.C.ΔT, where,
Q is the amount of heat needed,
m is the mass of the copper (m = 47.35 g),
C is the specific heat of Cu (C = 0.385 J/g.°C),
ΔT is the temperature difference (the final temperature - the initial temperature (ΔT = 85.0 - 20.0 = 65.0 °C).
∴ The amount of heat needed Q = m.C.ΔT = (47.35 g) (0.385 J/g.°C) (65.0 °C) = 1184.933 J ≅ 1185.0 J.