One mol of an ideal gas is heated at a constant external pressure of 200 kPa. Calculate the enthalpy involved and change in internal energy during this process upon the temperature change from 100 oC to 25.0 oC. Molar specific heat capacity CV = 3/2 R and the universal gas constant is 8.3145 J‧mol-1·K-1.

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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.