A 10. g cube of copper at a temperature T1 is placed in an insulated cup containing 10. g of water at a temperature T2 . If T1 > T2, which of the following is true of the system when it has attained thermal equilibrium? (The specific heat of copper is 0.385 J/(g·°C) and the specific heat of water is 4.18 J/(g·°C).)
A) The temperature of the copper changed more than the temperature of the water.
B) The temperature of the water changed more than the temperature of the copper.
C) The temperature of the water and the copper changed by the same amount.
D)The relative temperature changes of the copper and the water cannot be determined without knowing T1 and T2 .