(C) The ionization energy for $1 \ mol$ of $X$ is $720 \ kJ \ mol^{-1}$.Given mass of $X = 110 \ mg = 0.110 \ g$.Atomic weight of $X = 7 \ g \ mol^{-1

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(C) The ionization energy for $1 \ mol$ of $X$ is $720 \ kJ \ mol^{-1}$.Given mass of $X = 110 \ mg = 0.110 \ g$.Atomic weight of $X = 7 \ g \ mol^{-1}$.Moles of $X = \frac{\text{mass}}{\text{atomic weight}} = \frac{0.110 \ g}{7 \ g \ mol^{-1}} \approx 0.01571 \ mol$.Energy required = $\text{moles} \times \Delta H = 0.01571 \ mol \times 720 \ kJ \ mol^{-1} \approx 11.31 \ kJ$.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Ionisation energy

$X_{(g)} \to X^{+}_{(g)} + e^-$,$\Delta H = +720 \ kJ \ mol^{-1}$
Calculate the amount of energy required to convert $110 \ mg$ of $X$ atom in gaseous state into $X^{+}$ ion .................... $kJ$ (Atomic weight for $X = 7 \ g \ mol^{-1}$)

A
$10.4$
B
$12.3$
C
$11.3$
D
$14.5$

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Classification of Elements and Periodicity in Properties

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Ionisation energy

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$X_{(g)} \to X^{+}_{(g)} + e^-$,$\Delta H = +720 \ kJ \ mol^{-1}$Calculate the amount of energy required to convert $110 \ mg$ of $X$ atom in gaseous state into $X^{+}$ ion .................... $kJ$ (Atomic weight for $X = 7 \ g \ mol^{-1}$)

Similar Questions

Choose the correct order of second ionisation enthalpies of Carbon,Nitrogen,Oxygen and Fluorine.

Which of the following presents the correct order of second ionization enthalpies of $C$,$N$,$O$ and $F$?

Discuss the trend of the first ionisation enthalpy in the same period and explain why it occurs.

The first ionisation enthalpies for three elements are $1314$,$1680$ and $2080 \, kJ \, mol^{-1}$,respectively. The correct sequence of the elements is

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$X_{(g)} \to X^{+}_{(g)} + e^-$,$\Delta H = +720 \ kJ \ mol^{-1}$
Calculate the amount of energy required to convert $110 \ mg$ of $X$ atom in gaseous state into $X^{+}$ ion .................... $kJ$ (Atomic weight for $X = 7 \ g \ mol^{-1}$)