Question

under what condition enthalpy change is equal to the internal energy change

Answer 1

Answer:

The enthalpy change will be equal to internal energy change when the change in volume of system (∆V) is 0 , i.e. , the process is Isochoric .

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Answer 2

The condition under which enthalpy change is equal to the internal energy change is the isochoric process.

The enthalpy change is going to be adequate internal energy change when the change in volume of the system (∆V) is 0, i.e. the method is Isochoric.

• Internal energy is the total energy contained in a system whereas enthalpy is the heat content of a system. Enthalpy is up to the sum of internal energy and products of pressure-volume work.
• The internal energy change for a reaction is said to enthalpy by equation ΔE = ΔH - PΔV. This equation tells us that ΔH is extremely near ΔE if there's no volume change in the reaction.
• When a closed system receives energy as heat, this energy increases the inner energy. It's distributed between microscopic kinetic and microscopic potential energies.