PHYSICS 4.02

If 50 g of liquid water [C = 4,180 J/(kg • K)] changes temperature in a calorimeter from 298 K to 348 K, then how much heat is transferred?

10.5 kJ

The amount of heat needed to raise 250 g of a substance by 15 K is 2,930 J. What is the specific heat of the substance(J/kg*K) ?

780

A 0.80 kg block of a substance requires 2.08 kJ of heat to raise its temperature 20 K. Use the table to identify the substance. chart: ( https://goo.gl/Cya6Bn )

gold (au)

Which of the following factors is not used in calculating the specific heat of a substance?

melting point

What is true about heat capacity and specific heat?

Only specific heat accounts for mass.

Substances A-D have the following specific heats (J/kg*K): Substance A: 900; Substance B: 170; Substance C: 270; Substance D: 4,180. Which substance would be the best for transferring heat in a heating or cooling system?

Substance D