In a particular reaction, 2 kJ of heat is released by the system and 8 kJ of work is done on the system. Determine ΔU. - Chemistry

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Numerical

In a particular reaction, 2 kJ of heat is released by the system and 8 kJ of work is done on the system. Determine ΔU.

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Solution

ΔU = Q + W,

Here, Q = − 2 kJ, W = 8 kJ

∴  ΔU = − 2 + 8

∴  ΔU = 6 kJ

Concept: Enthalpy (H)
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