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Ionisation Energy

N02 atoms of ...

Question

$\frac{N_{0}}{2}$ atoms of $X (g)$ are converted into $X^{+} (g)$ by energy $E_{1}$ . $\frac{N_{0}}{2}$ atoms of $X (g)$ are converted into $X^{-} (g)$ by energy $E_{2}$ . Hence, ionisation potential and electron affinity of $X (g)$ are:

\frac{2 E_{1}}{N_{0}}, \frac{2 (E_{1} - E_{2})}{N_{0}}

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\frac{2 E_{1}}{N_{0}}, \frac{2 E_{2}}{N_{0}}

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\frac{(E_{1} - E_{2})}{N_{0}}, \frac{2 E_{2}}{N_{0}}

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none of the above

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Solution

The correct option is B $\frac{2 E_{1}}{N_{0}}, \frac{2 E_{2}}{N_{0}}$
IP is the energy require to remove valence electron from atom.
similarly, electron affinity is energy releases when one atom accepts one electron.
Let $I P = I$
$E A = E$
$X (g) \to X^{+} (g) + e^{-}$

$\frac{N_{0}}{2} I = E_{1}$

$I = \frac{2 E_{1}}{N_{0}}$

$X (g) + e^{-} \to X^{-} (g)$

$\frac{N_{0} E}{2} = E_{2}$

$E = \frac{2 E_{2}}{N_{0}}$

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Similar questions

N_o/2 atoms of X(g) are converted into X⁺(g) by energy E₁. N_o/2 atoms of X(g) are converted into X^-(g) by energy E₂. Hence the ionisation potential and electron affinity of X(g) per atom are:

A. 2E₁/N_o., 2(E₂-E₁)/N_o

B. 2E₁/N_o.,. 2E₂/N_o

C. E₁-E₂/N_{o. ,.}2E₂/N_o

D. None is correct

\frac{N_{0}}{2}

atoms of

X (g)

are converted into

X^{+} (g)

by absorbing

E_{1}

energy.

2 N_{0}

atoms of

X (g)

are converted into

X^{-} (g)

by releasing

E_{2}

energy. Calculate the ionisation enthalpy and electron gain enthalpy of

X (g)

per atom.

A_{0} / 2

atoms of

X (g)

are converted into

X^{+} (g)

by absorbing energy

E_{1}

A_{0} / 2

X^{+} (g)

are converted into

X^{-} (g)

with the release of energy,

E_{2}

. Hence the ionisation energy and the electron affinity of

X (g)

are repectively _____ and _______.

No/2 atoms of $X_{(g)}$ are converted into $X_{(g)^{+}}^{+}$ by energy $E_{1}$ , No/2 atoms of $X_{g}$ are converted into $X_{(g)}^{-}$ by energy $E_{2}$ . Hence ionization potential and electron affinity of $X_{(g)}$ per atom are