A reaction has AH =-131 kJ and ASm = 325 J/K. Part A At what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings? Express your answer in kelvins. T = K

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A: Mass defect is given by the formula ∆m = [mass of protons + mass of neutrons]  - [mass of atom]

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Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.