PHYSICS · Single correct · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics
Problem
Three 1 kg samples of solids P, Q, and R are each warmed from 20 °C to 30 °C. The specific heat of P is twice that of Q and three times that of R. Which statement correctly compares the thermal energy required for the three samples?
(a) Energy for Q equals energy for R, and both are less than the energy for P.
(b) Energy for P > Energy for Q > Energy for R
(c) All three samples require the same thermal energy because their temperature changes are the same.
(d) Energy for R > Energy for Q > Energy for P