Chemistry · Thermochemistry
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Enthalpy of a system is given as _______?
- A
∆H = qv + w
- B
∆H = E + PV
- C
∆H = qp + PV
- D
∆H = E
In symbols, the enthalpy, H, equals the sum of the internal energy, E, and the product of the pressure, P, and volume, V, of the system: H = E + PV.
This option is incorrect. ΔH = qv + w: This equation mixes concepts. qv represents heat at constant volume, and 'w' is work. While related, they don't directly define enthalpy.
In symbols, the enthalpy, H, equals the sum of the internal energy, E, and the product of the pressure, P, and volume, V, of the system: H = E + PV.
This option is incorrect. In symbols, the enthalpy, H, equals the sum of the internal energy, E, and the product of the pressure, P, and volume, V, of the system: H = E + PV.
This option is incorrect. ΔH = E: This is incomplete. It only considers the internal energy change (E) and omits the pressure-volume work.
Tagged under Chemistry · Thermochemistry · 2021