Question

what is heat? explain it

Answer 1

Heat is a form of energy. It is a kinetic energy which is transfered from one medium to another medium. Heat exists in three manners:- convection, conduction, radiation

Answer 2

Answer:

When two bodies are in thermal contact with each

other, there is a transfer of energy from the body at

hugher temperafure to the body at lower tempera-

ture. The energy in transter is called the heat Also

when two parts of a body are at different tempera-

tures, there is a transter of energy from the part at

higher temperature to the other part. The SI unit of

heat is the joule.

INote: Count Rumford Benjamin Thonpson

(1753-1814) Anglo-American adventurer, social

reformer, inventor and physicist, measured the relation

between work and heat. When he visted ATsenal in

Muich, he tond that tremendlous amount ot heat was

produced in a short time when a brass cannon was being

bored. He found that even with a blunt borer a lot of heat

can be produced trom a piece ot me tal. At that time t

was thought that heat consists ota thud called caloric.

Rumford's cxperiments showed that caloric did not exist

and heat is the motion of the particles of a body. He

measiired the relation beween wOTk done and corre

ponding heat produce. The result was not acurate, but

important n developiment ot thermocdynamics