PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A 25.0g sample of aluminum (c=0.897J g−1∘C−1) cools from 60.0∘C to 25.0∘C. What is the value of q for the aluminum sample?
(a) +7.85×102J
(b) −3.65×103J
(c) −7.85×102J
(d) −1.12×103J