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Electronic Configuration

Absolute ioni...

Question

Absolute ionic mobility is the speed of ion under the electric field of and its dimension :

5 V across a distance of 5 cm,

m^{2} V^{- 1} S^{- 1}

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10 V across a distance of 5 cm,

m V^{- 1} S^{- 1}

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5 V across a distance of 10 cm,

m^{2} V^{- 2} S^{- 1}

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5 V across a distance of 25 cm,

m^{2} V^{- 1} S^{- 1}

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Solution

The correct option is A 5 V across a distance of 5 cm, $m^{2} V^{- 1} S^{- 1}$
The ionic mobility of an ion is its absolute velocity ( distance traveled in cm/sec) under a potential gradient of one volt per cm. Hence over a distance of 5 cm, the potential gradient will be 5 V. The dimensions are $m^{2} V^{- 1} s^{- 1} .$

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