Identify the correct order of standard enthal | vedclass

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

Question

(B) The standard enthalpy of formation $(\Delta_{f}H^0)$ for ionic compounds like sodium halides is primarily determined by the lattice energy and the

Vedclass · Accepted Answer

$NaF < NaCl < NaBr < NaI$

Vedclass · Answer

(B) The standard enthalpy of formation $(\Delta_{f}H^0)$ for ionic compounds like sodium halides is primarily determined by the lattice energy and the hydration/sublimation energies. As the size of the halide ion increases from $F^-$ to $I^-$,the lattice energy decreases (becomes less negative). Consequently,the overall enthalpy of formation becomes less negative (i.e.,increases algebraically) in the order $NaF Therefore,the correct order of $\Delta_{f}H^0$ values is $NaF < NaCl < NaBr < NaI$.

Identify the correct order of standard enthalpy of formation of sodium halides.

Similar Questions

Which of the following statements is incorrect?

Lithium nitrate and sodium nitrate,when heated separately,respectively,give

Potassium is kept in

Which is most basic in character?

Zinc reacts with caustic soda to form........

Vedclass Test Series

Exam Paper Generator

Online Exam Module