application of specific heat examples
Answers
Heat
Heat is a form of energy that can be transferred from one object to another or even created at the expense of the loss of other forms of energy. It cause sensation of hotness and coldness.It flow from a region of higher temperature to a region of lower temperature.
Method of transferring heat
There are 3 different process by which heat transfer takes place. They are :
- Conduction
- Convection
- Radiation
Conduction
The process of transmission of heat energy in solid without actual movement of particle from their position is called conduction..
Convection
Convection is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.
Radiation
The transfer of heat energy from a hot body to a cold body directly, without heating the space in between the two bodies, is called radiation. The heat energy transmitted by the process of radiant heat or thermal radiation.
Appliciations Of the
Conduction :-
- Heat conduction is applied in cooking with metal pot e.g. Aluminum pots.
- Ironing of clothes with pressing iron
- .Welding of two iron metals together.
- The handles of the cooking utensils are made of materials like plastic and sometimes wood which cannot conduct heat when carried by the cook.
- Mercury in the thermometer.
Convection:-
- Boiling water - The heat passes from the burner into the pot, heating the water at the bottom.
- Radiator - Puts warm air out at the top and draws in cooler air at the bottom.
- Steaming cup of hot tea - The steam is showing heat being transfered into the air.
- Ice melting - Heat moves to the ice from the air.
- Ventilation un rooms.
Radiation :-
- Radiators of ka and air conditioners are painted black so as the radiate maximum amount of heat to produce cooling effect .
- the base of cooking utensil is painted black so it absorb more heat and cooks food quickly
- dark coloured cloth are more suitable in the winter because they absorb most of the radiate heat of the sun and keep us warm
- White and light coloured clothes are more suitable in summer because they observe very little amount of Sun's heat and thus, keep our body School
- The Ray of Sun the earth by the method of radiation.
Answer:
Heat
Heat is a form of energy that can be transferred from one object to another or even created at the expense of the loss of other forms of energy. It cause sensation of hotness and coldness.It flow from a region of higher temperature to a region of lower temperature.
Method of transferring heat
There are 3 different process by which heat transfer takes place. They are :
Conduction
Convection
Radiation
Conduction
The process of transmission of heat energy in solid without actual movement of particle from their position is called conduction..
Convection
Convection is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.
Radiation
The transfer of heat energy from a hot body to a cold body directly, without heating the space in between the two bodies, is called radiation. The heat energy transmitted by the process of radiant heat or thermal radiation.
Appliciations Of the
Conduction :-
Heat conduction is applied in cooking with metal pot e.g. Aluminum pots.
Ironing of clothes with pressing iron
.Welding of two iron metals together.
The handles of the cooking utensils are made of materials like plastic and sometimes wood which cannot conduct heat when carried by the cook.
Mercury in the thermometer.
Convection:-
Boiling water - The heat passes from the burner into the pot, heating the water at the bottom.
Radiator - Puts warm air out at the top and draws in cooler air at the bottom.
Steaming cup of hot tea - The steam is showing heat being transfered into the air.
Ice melting - Heat moves to the ice from the air.
Ventilation un rooms.
Radiation :-
Radiators of ka and air conditioners are painted black so as the radiate maximum amount of heat to produce cooling effect .
the base of cooking utensil is painted black so it absorb more heat and cooks food quickly
dark coloured cloth are more suitable in the winter because they absorb most of the radiate heat of the sun and keep us warm
White and light coloured clothes are more suitable in summer because they observe very little amount of Sun's heat and thus, keep our body School
The Ray of Sun the earth by the method of radiation.