Consider the following reaction which occurs at P = 1.00 atm and T = 573 K.                2NaHCO3(s)  -->  Na2CO3(s)  +  CO2(g)  +  H2O(g)     If the process absorbed 129.1 kJ of heat, and the gas produced resulted in a volume expansion of 94.0 L against a constant pressure of 1.00 atm, what is DUfor this reaction? (1 L-atm = 0.1013 kJ)  (D = delta)          (A) +138.6 kJ          (B) +119.6 kJ          (C) -119.6 kJ          (D) -9.5 kJ

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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.