Heat and Temperature

The following two Questions refer to the following information:

A piece of metal with a mass of 2 kg and specific heat of 200 J/kgC is initially at a temperature of 120C. The metal is placed into an insulated container that contains a liquid of mass 4 kg with a specific heat of 600 J/kgC and an initial temperature of 20C.

 

After a long time, what is the final equilibrium temperature of the metal and liquid?

a) 24C

b) 34C

c) 48C

d) 68C

e) 100C

 

Heat and Temperature

A piece of metal with a mass of 2 kg and specific heat of 200 J/kgC is initially at a temperature of 120C. The metal is placed into an insulated container that contains a liquid of mass 4 kg with a specific heat of 600 J/kgC and an initial temperature of 20C.

 

In actuality, some of the heat is lost to the surroundings during the heat transfer from metal to liquid. This heat loss would result in

a) a lower equilibrium temperature.

b) a higher equilibrium temperature.

c) a lower specific heat for the liquid.

d) a lower specific heat for the metal.

e) more heat gained by the liquid.