If lattice enthalpy and hydration enthalpy of | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The enthalpy of solution $(\Delta_{	ext{soln}} H)$ is given by the sum of the lattice enthalpy $(\Delta_{L} H)$ and the hydration enthalpy $(\Del

Vedclass · Accepted Answer

$17.20 \ kJ \ mol^{-1}$

Vedclass · Answer

(D) The enthalpy of solution $(\Delta_{	ext{soln}} H)$ is given by the sum of the lattice enthalpy $(\Delta_{L} H)$ and the hydration enthalpy $(\Delta_{	ext{hyd}} H)$.$\Delta_{	ext{soln}} H = \Delta_{L} H + \Delta_{	ext{hyd}} H$Given: $\Delta_{L} H = 699 \ kJ \ mol^{-1}$ and $\Delta_{	ext{hyd}} H = -681.8 \ kJ \ mol^{-1}$.Substituting the values:$\Delta_{	ext{soln}} H = 699 \ kJ \ mol^{-1} + (-681.8 \ kJ \ mol^{-1})$$\Delta_{	ext{soln}} H = 17.2 \ kJ \ mol^{-1}$.

If lattice enthalpy and hydration enthalpy of $KCl$ are $699 \ kJ \ mol^{-1}$ and $-681.8 \ kJ \ mol^{-1}$ respectively,what is the enthalpy of solution of $KCl$?

Similar Questions

$A$ gas has a density of $2.68 \ g/L$ at $STP$. Identify the gas.

Who is called the father of chemistry?

If $10^{23}$ molecules are removed from $5.6 \ L$ of an ideal gas at $273 \ K$ and $2 \ atm$ pressure,how many moles of the gas will remain?

Calculate the number of moles of $NaOH$ required to completely neutralize $100 \ g$ of $118\%$ oleum.

In potash alum, the ratio of $K^+$ and $SO_4^{2-}$ ions is

Vedclass Test Series

Exam Paper Generator

Online Exam Module