Water decomposes by absorbing 286.2 kJ of electrical energy per mole. When `H_(2)` and `O_(2)` combine to form one mole of `H_(2)O, 286.2kJ` of heat is produced. Which law is proved ? What statement of the law followsfrom it?

Water decomposes by absorbing 286.2 kJ of electrical energy per mole.

1.	Water decomposes by absorbing 286.2 kJ of electrical energy per mole. When `H_(2)` and `O_(2)` combine to form one mole of `H_(2)O, 286.2kJ` of heat is produced. Which law is proved ? What statement of the law followsfrom it?
Answer» Law of conservation of energy ( or 1st law of thermodynamics) Def.Energy can neither be created or destroyed , although it may be converted from one formto another.

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Water decomposes by absorbing 286.2 kJ of electrical energy per mole. When `H_(2)` and `O_(2)` combine to form one mole of `H_(2)O, 286.2kJ` of heat is produced. Which law is proved ? What statement of the law followsfrom it?

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