Answer:
the final temp would be -9.12 °C
Step-by-step explanation:
use Q = mcΔT equation
Given:
Heat capacity (C) = 3.40 × 10^3 J/°C
Heat absorbed (Q) = 54.0 kJ = 54.0 × 10^3 J
Initial temperature (T1) = -25.0 °C
rearrange the equation since we are solving for temperature...
ΔT = Q / (mc)
so...
ΔT = (54.0 × 10^3 J) / (1 × 3.40 × 10^3 J/°C)
then...
ΔT ≈ 15.88 °C
to find the final temperature,just simply add the temperature to the initial temperature...
Final temp (T2) = T1 + ΔT
(T2) = -25.0 °C + 15.88 °C
so the answer would be...
(T2) ≈ -9.12 °C