Answer:
26.3°C.
Step-by-step explanation:
- To solve this problem, we can use the relation:
Q = m.c.ΔT,
where, Q is the amount of heat absorbed by copper (Q = 1000 J).
m is the mass of the copper (m 2000 g).
c is the specific heat of copper (c = 0.385 J/°C.g).
ΔT is the difference between the initial and final temperature (ΔT = final T - initial T = final T - 25°C).
∵ Q = m.c.ΔT
∴ (1000 J) = (2000 g)(0.385 J/°C.g)(final T - 25°C)
∴ (final T - 25°C) = (1000 J)/(2000 g)(0.385 J/°C.g) = 1.299.
∴ final T = 25°C + 1.299 = 26.299°C ≅ 26.3°C.