The enthalpy change for the reaction 2CO(g)+O2(g)2CO2(g)is termed as

  1. A

    enthalpy of reaction

  2. B

    enthalpy of fusion

  3. C

    enthalpy of fusion

  4. D

    enthalpy of combustion

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    Solution:

    Given reaction , suggests that two molecules of carbon dioxide combine with one to create two moles of
    Since 
    (i) the energy change in a reaction that creates 1 mole of any species is known as the enthalpy of creation 
    The energy change in a reaction during the combustion of 1 mole of any species is known as the enthapy of combustion
    The energy change in a reaction during the combustion of 1 mole of any species is known as the enthapy of combustion 
    (ii) Enthalpy of fusion is the energy involved in fusion reaction of 1mole of any species.
    Enthalpy of reaction
    (iii) is the change in energy in any reaction. 
    Therefore,
     option A is the correct response.

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