In an exothermic reaction

In an exothermic reaction

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(a) enthalpy of reactants is equal to that of the products (b) enthalpy of reactants is greater than that of the products (c) enthalpy of reactants is less than […]

The internal energy of a system is the sum of

The internal energy of a system is the sum of

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(a) vibrational energy and electronic energy (b) vibrational energy and rotational energy (c) vibrational energy, rotational energy, electronic energy and translational energy (d) […]

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