Answer:
15,300 joules.
Explanation:
- To solve this problem, we can use the relation:
Q = mcΔT,
Where, Q is the amount of heat needed to raise the temperature of the water (J).
m is the mass of the water (m = 83.2 g).
c is the specific heat capacity of the metal (c = 4.186 J/g.°C).
ΔT is the temperature difference (ΔT = final T - initial T = 74.0 °C - 30.0 °C = 44.0 °C).
∴ Q = mcΔT = (83.2 g)(4.186 J/g.°C)(44.0 °C) = 15324.1 J ≅ 15,300 joules.
