For the reaction $2 Cl left parenthesis straight g right parenthesis space rightwards arrow space space Cl subscript 2 left parenthesis straight g right parenthesis comma$ what are the signs of $increment straight H space and space increment straight S.$ ?

Solution

Since the given reaction
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represents the formation of bonds, therefore energy is released i.e. ∆H is –ve, further 2 moles of atoms have greater randomness than 1 mole of molecules. Hence randomness decreases, i.e. ∆S is < 0 i.e. negative.

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Thermodynamics

For the reaction $2 Cl left parenthesis straight g right parenthesis space rightwards arrow space space Cl subscript 2 left parenthesis straight g right parenthesis comma$ what are the signs of $increment straight H space and space increment straight S.$ ?

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