The lattice energy of solid KCl is 181 kcalmol−1 and the enthalpy of – InterviewSolution

InterviewSolution

1.	The lattice energy of solid KCl is 181 kcalmol−1 and the enthalpy of solution of KCl in H2O is 1.0 kcalmol−1. If the hydration enthalpies of K+ and Cl− ions are in the ratio of 2:1, then the enthalpy of hydration of K+ is −x kcalmol−1. Find the value of x.
Answer» The lattice energy of solid KCl is $181 {kcalmol}^{- 1}$ and the enthalpy of solution of $K C l$ in $H_{2} O$ is $1.0 {kcalmol}^{- 1}$ . If the hydration enthalpies of $K^{+}$ and $C l^{-}$ ions are in the ratio of 2:1, then the enthalpy of hydration of $K^{+}$ is $- x {kcalmol}^{- 1}$ . Find the value of $x$ .

Discussion

No Comment Found

Related InterviewSolutions

If this is Energy vs Dihedral angle graph of Butane, then I,II and III are respectively :
When limestone is heated, quicklime is formed according to the equation. CaCO3(s)⇌CaO(s)+CO2(g)The experiment was carried out in the temperature range 800−900oC, Equilibrium constant Kp follows the relation. log Kp=7.282−8500Twhere, T is temperature in Kelvin. At what temperature the decomposition will give CO2(g) at 1 atm?
Which of the following solutions will have the highest boiling point?
In a compound oxide ions are present in CCP. 16 th of the tetrahedral voids are occupied cation A and 13 rd of the octahedral voids are occupied by cation B. What is the formula of the compound and what are the charges on A and B respectively.
Number of equivalent(s) of HI required for a complete reaction with the above compound is/are
Which of the following reactions will not give 2-methyl-2-phenylpropane?
An aqueous solution of BaCl2 (1.28gm in 100gm of water)boils at 100.0832∘ at 1 atm. Calculate the degree of dissociation. ( Kb of water is 0.512 k/m)
50 mL of H2 gas diffuses through a small hole from a vessel in 20 min. Time taken by 40 mL of O2 gas to diffuse under similar conditions will be :
Which of the following is not isoelectronic series?
The rate constant for a reaction depends upon each of the following, EXCEPT: