A 20-kg piece of aluminum (which has a specific heat of 900 J/kg.ºC) is warmed so that its
temperature increases by 5.0ºC. How much heat was transferred into it?
a. 4.5 × 104
J c. 1.4 × 105
J
b. 9.0 × 104
J d. 2.0 × 105
J