The time required to coat aluminium metal on the surface of a square plate of length 20 cm about 5 mm thickness on both sides by using molten AlCl3 solution and 10 A current is nearly [Specific gravity of textAl = 1.8 textg textmL- 1 ]

Question

The time required to coat aluminium metal on the surface of a square plate of length 20 cm about 5 mm thickness on both sides by using molten AlCl3 solution and 10 A current is nearly [Specific gravity of textAl = 1.8 textg textmL- 1 ] (A) 107.2 hr (B) 214.4 hr (C) 53.6 hr (D) 71.5 hr

Tardigrade Admin · Accepted Answer

m=20× 20× 0.5× 2× 1.8=720 gm ; m=(9/96500)× 10× t t=214.44 hr

Q. The time required to coat aluminium metal on the surface of a square plate of length $20$ $c m$ about $5$ $mm$ thickness on both sides by using molten $A lC l_{3}$ solution and $10$ $A$ current is nearly [Specific gravity of $Al = 1.8 g mL^{- 1}$ ]

$107.2$ $h r$

$214.4$ $h r$

$53.6$ $h r$

$71.5$ $h r$

$m = 20 \times 20 \times 0.5 \times 2 \times 1.8 = 720$ $g m$ ;

$m = \frac{9}{96500} \times 10 \times t$

$t = 214.44$ $h r$

Q. The time required to coat aluminium metal on the surface of a square plate of length 20 cm about 5 mm thickness on both sides by using molten AlCl3​ solution and 10 A current is nearly [Specific gravity of Al=1.8gmL−1 ]

107.2 hr

214.4 hr

53.6 hr

71.5 hr