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The emf of the Weston standard cell is __________ at 20^oC.

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The emf of the Weston standard cell is __________ at 20^oC.

(a) 16.7989V

(b) 5.2572V

(c) 1.0183V

(d) 0V

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Correct choice is (c) 1.0183V

To explain I would say: The electro motive force of the Weston standard cell is 1.0183V at 20^oC and It varies slightly by 0.0000406V per change of 1^oC.
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