Home
Class 12
CHEMISTRY
The dissolution of ammonium chloride in ...

The dissolution of ammonium chloride in water is an endothermic process but still it dissolves in water readily. Why ?

Text Solution

Verified by Experts

This is because of entropy change. In this case, `DeltaS` is positive.
`NH_(4)Cl (aq) rarr NH_(4)^ (o+) (aq) + Cl^(ө) (aq)`
The ions that were held together in the crystalline solid are free and move in all possible directions. Its entropy increases and then `T DeltaS gt DeltaH`.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Solved Examples|40 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercises (Linked Comprehension)|58 Videos

  • SOLID STATE

    CENGAGE CHEMISTRY|Exercise Ex 1.2 (Objective)|9 Videos

  • SURFACE CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|2 Videos

Similar Questions

Explore conceptually related problems

The dissolution of ammonium chloride in water is an endothermic process. What is the effect of temperature on its solubility?

Althought he dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because:

Dissolution of ammonium chloride in water is an endothermic reaction, yet it is a spontaneous process. This is due to the fact that

Although the dissociation of ammonium chloride (CH_(4)Cl) in water is an endothermic reaction, even then it is spontaneous because:

Assertion (A): The dissolution of gases in water is always an endothermic process. Reason (R ) : The dissolution of gases in water proceed with a negative value of DeltaS .