Heat (10)

Calorimetry: meaning, specific heat capacity; principle of method of mixtures; Numerical Problems on specific heat capacity using heat loss and gain and the method of mixtures.

Latent heat; loss and gain of heat involving change of state for fusion only.

The specific heat capacity of a substance A is 3,800
State whether the specific heat capacity of a substance
Define Calorimetry
The melting point of naphthalene is 80°C and the room temperature is 30°
104 g of water at 30°C is taken in a calorimeter made of copper of mass 42 g
Why does stone lying in the sun get heated up much more than water
Two metallic blocks P and Q having masses in ratio 2:1
Heat capacity of a substance
State two differences between Heat Capacity and Specific Heat Capacity
Define heat capacity and state its SI unit
Why is the base of a cooking pan generally made thick
The diagram shows the change of phases of a substance on a temperature vs time graph
A piece of ice of mass 60 g is dropped into 140 g of water
How can a temperature in degree Celsius be converted into S.I. unit of temperature
A solid metal weighing 150 g melts at its melting point of 800° C by providing heat at the rate of 100 W
Heat supplied to a solid change it into liquid. What is this change in phase called
The temperature of 170g of water at 50°C is lowered to 5°C by adding certain amount of ice to it. Find the mass of ice added
A solid of mass 50 g at 150oC is placed in 100 g of water
Define specific resistance and state its SI unit
How is the transference of heat energy by radiation
The diagram shows a coil wound around a U shape soft iron bar AB
You have a choice of three metals A, B and C, of specific heat capacities
Calculate the mass of ice needed to cool 150g of water
Name the radiations which are absorbed by greenhouse
A radiation X is focused by a particular device on the bulb
Name two factors on which the heat energy liberated
Calculate the mass of ice required to lower the temperature of 300g
The heat capacity of the body is 60 JK-1
State two factors upon which the heat absorbed by a body depends
State the characteristics required of a good thermion emitter
State the characteristics required in a material
What is the principle of method of mixtures
Some ice is heated at a constant rate, and its temperature
A copper vessel of mass 100 g contains 150 g of water at 50°C