Question

Which of the following is/are correct with respect to reactions given below?
$M _{( g )} \longrightarrow M _{( g )}^{+}+ e ^{-} ; \Delta H =100 eV$
$M _{( g )} \longrightarrow M _{( g )}^{2+}+ e ^{-} ; \Delta H =250 eV$

• A. $\Delta H _{1}$ of $M _{( g )}$ is $100 eV$
• B. $\Delta H _{1}$ of $M _{( g )}^{+}$ is $150 eV$
• C. $\Delta H _{2}$ of $M _{( g )}$ is $250 eV$
• D. All are correct

Answer 1

Answer: (D)

$M _{( g )} \longrightarrow M _{( g )}^{+}+ e ^{-} ; \Delta H _{1}=100 ev$

$M _{( g )}^{+} \longrightarrow M _{( g )}^{2+}+ e ^{-} ; \Delta H =150 ev$

$M _{(8)} \longrightarrow M _{( g )}^{2+}+ e ^{-} ; \Delta H _{2}=250 ev$