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First Law of Thermodynamics

Q. For a change in a system that takes place at constant pressure, which of the following expressions is correct? (A) ∆H = ∆U (B) ∆H = qp − p∆V (C) ∆H = ∆U − qp (D) ∆H = qp (E) ∆H = qv

Solved • Jun 25, 2019

First Law of Thermodynamics

Q. Use standard enthalpies of formation to determine ΔHorxnfor: 2Al(s) + 3Cl2(g) → 2AlCl3(s) Enter in kJ. Find the change in internal energy for this reaction. Enter in kJ.

Solved • Apr 25, 2019