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Ionisation Energy

For the proce...

Question

For the process
$X (g) + e^{-} \to X^{-} (g), Δ H = x$
and $X^{-} (g) \to X (g) + e^{-}, Δ H = y$
Select correct alternative:

A

Ionisation energy of

X^{-} (g)

is y

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B

Electron affinity of X(g) is x

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C

Electron affinity of X(g) is -y

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D

All the above are correct statements

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Solution

The correct option is D All the above are correct statements
The Minimum energy required to remove most loosely held the outer most shell in the ground state from an isolated gaseous atom is known as ionization potential.
Electron affinity is the amount of energy released when an electron is added to the outermost shell of one mole of an isolated gaseous atom in its lower energy state.
$X (g) + e^{-} \to X^{-} (g); Δ H = x = E A$ of $X (g)$
$X^{-} (g) \to (X) g + e^{-}; Δ = y = (I E)$ of $X^{-} (g)$
$= - (E A)$ of $X (g)$

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Similar questions

_{0}

/2 atoms of X(g) are converted into X

^{+}

(g) by energy E

_{1}

_{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:

A_{0} / 2

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 _______.

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

X_{(g)} \to X_{(g)}^{+} + e^{-}, Δ H = + 720 k J m o l^{- 1}

. Calculate the amount of energy required to convert 110 mg of ''X'' atom in gaseous state into

X^{+}

ion. (Atomic wt. for X=7 g/mol)

X_{(g)} + e^{-} \to X_{(g)}^{-} + E

E

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