Consider a system consisting of 2.0 mol CO₂(g), initially at 25°C and 10 atm and confined to a cylinder of cross-section 10 cm³. It is allowed to have moved outwards through 20 cm. Assume that carbon dioxide may be considered a perfect gas with Cvm = 28.8 J K-1 mol-1 and calculate (a) q (b) w (c) ΔU (d) AT (e) AS

Q: enthalpy

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.