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Calculate DeltaU, internal energy change...

Calculate `DeltaU`, internal energy change of a system, if it absorbs `25 kJ` of heat and does `5kJ` of work.

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To calculate the change in internal energy (ΔU) of the system, we will use the first law of thermodynamics, which states: \[ \Delta U = Q + W \] Where: - ΔU is the change in internal energy, ...
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