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NEET 2011

Exam: NEET
Year: 2011
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

NEET 2011 · Chemistry · Classification of Elements and Periodicity in Properties

What is the value of electron gain enthalpy of Na^ + if IE_1 of...

What is the value of electron gain enthalpy of

\mathrm{Na}^{+}

if

\mathrm{IE}_1

of

\mathrm{Na}=5.1 \mathrm{eV}

?

Options

A $-5.1 \mathrm{eV}$
B $-10.2 \mathrm{eV}$
C $+2.55 \mathrm{eV}$
D $+10.2 \mathrm{eV}$

Correct answer

A. $-5.1 \mathrm{eV}$

Step-by-step solution

\mathrm{IE}_1

of

\mathrm{Na}=-

Electron gain enthalpy of

\mathrm{Na}^{+}

ion

=-5.1 \mathrm{eV}

.

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