IIT JEE , AIEEE Forum - Physics , Mechanics

pankaj_kumar

THE FIRST LAW OF THERMODYNAMIC SAYS THAT THE HEAT CAN NOT BE CREATED (BUT WHEN WE BURN A BUNDDLE OF NEWSPAPER WE CREAT HEAT ) WHAT YOU WILL SAY ABOUT THEM

Greatdreams

First law of thermodynamics is just an extension of

principle of conservation of energy.For that the concept

of a thermodynamic system is very important to

understand.A thermodynamic system is a system that

can interact with its surroundings or environment in at

least one way which is heat transfer.

And the example you have drawn over here is that of the

paper being burnt.Principle of conservation of energy is

not being violated over here.Only chemical energy is

being converted into heat energy (maybe some light and

sound) too.

papu071291

yes you are right

kane

dude,energy can never be created or destroyed(eliminated).it can only be converted from one form into another.just remember this line bro.you must have heard it somewhere.

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