A 2.0 kg aluminum block is originally at 10°C. If 140 kJ of heat is added to the block, what is its final temperature?

Question

Quizplus · Accepted Answer

The specific heat capacity of aluminum is approximately 900 J/kg°C. Using the formula Q = mcΔT, where Q is the heat added, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature, we can solve for the final temperature: 140,000 J = 2 kg * 900 J/kg°C * ΔT, which gives ΔT = 77.78°C. Adding this to the initial temperature of 10°C results in a final temperature of approximately 88°C.

A 20 Kg Aluminum Block Is Originally at 10°C