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An ice pack works ammonium chloride and water react e_______ and energy is a_____ from the surrounding.
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- (e) A slow reaction has a rate constant k = 6.51 × 10−3 mol−1 dm3 at 300 K.Use the equation ln k = ln A - Ea / RT to calculate a value, in kJ mol−1, for the activation energy of this reaction.The constant A = 2.57 × 1010 mol−1 dm3.The gas constant R = 8.31 J K−1 mol−1.
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- An endothermic process that performs work. |work| < | heat|