In a container, a mixture of 0.5 kg of water and an unknown mass of ice are both at a temperature of 
. When 50 g of water vapor is released into the mixture, all the ice melts, and the temperature of the initial mixture rises by 3 K. What is the mass of the ice in the mixture?
to steam at a temperature of 
. What is the initial velocity of the comet?
. How many kilograms of water at a temperature 
must be added so that the mixture will be at temperature 
? Assume no heat loss to the surroundings.
and 1 litre of water at 
. What is the final temperature of the mixture?
and 200 g of iron heated to a temperature of 
are placed in a thermally insulated container until a thermal equilibrium is established at a final temperature of 
? The specific heat capacity of water is 4200 J/Kg K. What is the specific heat capacity of iron?
is poured inside the calorimeter and 2 kg of a piece of copper heated to a temperature 
is dropped in the water. When thermal equilibrium is established, the final temperature of the mixture is 
. What is the initial temperature of the copper piece? The specific heat capacity of water is 4200 J/kg K and that of copper is 385 J/kg K.
is placed in a thermally insulated container together with an electric immersion heater with a power of 1 kW. The heater is on for 30 minutes. What happens to the water?
and 1 kg of boiling water to obtain a mixture of temperature 
?
is placed in a thermally insulated container and 2 litres of ice-cold water at a temperature of 
is poured into the container. What happens to the mixture when thermal equilibrium is established?
is placed in a thermally insulated container and 0.1 kg of steam at temperature 
is introduced into the water. What happens to the mixture in the container?
. What is the mass of the ice that melts?
are placed in a thermally insulated container. A 3 kW electric heater is also placed in the container and left on for 15 minutes. What is the final temperature of the mixture?
and 2 kg of steam at a temperature of 
are placed in a thermally insulated container. What happens to the mixture when thermal equilibrium is established?
and 2 kg of steam at a temperature of 
are placed in a thermally insulated container. What happens to the mixture when thermal equilibrium is established?
to 
. The figure below shows the variation with temperature, measured in degrees Celsius, of the resistance of the thermistor.
. Determine this temperature, in kelvin, to an appropriate number of decimal places.
, is heated so that its temperature rises to 
. Calculate, in kelvin, to an appropriate number of decimal places,
to 
. Determine, in kelvin and to an appropriate number of significant figures,
is 
. At 
the resistance is 
. When the thermistor is placed in water at a particular constant temperature, its resistance is 
.
. By reference to what is meant by the thermodynamic scale of temperature, comment on your answer in (a).
to a final temperature of 
. State, to an appropriate number of decimal places,
and 
.
to 
. Determine, in kelvin and to an appropriate number of decimal places,
