The laws of energy transformations or the laws of energy conservation




There are two laws of energy transformations or laws of thermodynamics


1: First law of thermodynamics OR law of energy conservation

2: Second law of thermodynamics OR conservation

First law of thermodynamics


Definition:-


According to first law of thermodynamics :
Energy can neither be created nor be destroyed, but it can change from one form to another form.

For Example:-


A squirrel eats a nut (fruit) & use this amount of energy to climb on a tree. But this amount of energy can neither be lost nor be created but it can change from potential energy (P.E.) to kinetic energy (K.E.) Therefore, the total amount of energy remains constant.

Second law of thermodynamics


The second law of thermodynamics states that:
All objects in the universe tends to become more disorderd & tje total amount of disorder in the universe is increasing continually.

Entropy


The measuring of degree of disorganization (disorder) is called entropy.

For example


When natural gas burns in a burner. The potential chemical energy (stored in the bonds of molecules of gas) is converted into heat energy & light energy [blue flame]. Some amount of heat energy is used to boil water on the stove or burner. Some of its amount, is dissipated in the kitchen. Where it do no work. This unusable energy indicates increased entropy.

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