A glass beaker contains a mass of 0.20 kg of water at a temperature of 20 °C
PHYSICS · Single correct · GCSE · Physics · Energy · Energy
Problem
A glass beaker contains a mass of 0.20 kg of water at a temperature of 20 °C.
The specific heat capacity of water is 4200 J/(kg °C).
A brass block of mass 0.15 kg is at a temperature of 170 °C. The block is carefully lowered into the beaker of water.
The final temperature of both the water and brass is 30 °C.
What is the specific heat capacity of the brass?
(Assume that no water is lost and no thermal energy has been transferred to the beaker or the surroundings.)
(A) 400 J/(kg °C)
(B) 660 J/(kg °C)
(C) 1200 J/(kg °C)
(D) 5600 J/(kg °C)