Solubility curve of $Na_2SO_4?10H_2O$ in water with temperature is given as shown in the figure. From the figure, we can say that
- solution process is exothermic
- solution process is exothermic till $34^{\circ}C$ and endothermic after $34^{\circ}C$
- solution process is endothermic till $34^{\circ}C$ and exothermic thereafter
- solution process is endothermic.
The Correct Option is C
Solution and Explanation
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Concepts Used:
Concentration of Solutions
It is the amount of solute present in one liter of solution.
Concentration in Parts Per Million - The parts of a component per million parts (106) of the solution.
Mass Percentage - When the concentration is expressed as the percent of one component in the solution by mass it is called mass percentage (w/w).
Volume Percentage - Sometimes we express the concentration as a percent of one component in the solution by volume, it is then called as volume percentage
Mass by Volume Percentage - It is defined as the mass of a solute dissolved per 100mL of the solution.
Molarity - One of the most commonly used methods for expressing the concentrations is molarity. It is the number of moles of solute dissolved in one litre of a solution.
Molality - Molality represents the concentration regarding moles of solute and the mass of solvent.
Normality - It is the number of gram equivalents of solute present in one liter of the solution and it is denoted by N.
Formality - It is the number of gram formula present in one litre of solution.