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A system at equilibrium is described by ...

A system at equilibrium is described by the equation
`SO_(2)Cl_(2) hArr SO_(2)+Cl_(2),Delta H =+ve`.
When `Cl_(2)` is added to the equilibrium mixture at constant volume, the temperture of the system

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When `Cl_2` is added to the equilibrium system, the reaction shifts to the left. This produces more heat and therefore, temperature is increased.
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