A factory produces 40 kg of calcium in two hours by electrolysis. How much aluminium can be produced by same current in 2 hours if current efficiency is 50 %?

Question

A factory produces 40 kg of calcium in two hours by electrolysis. How much aluminium can be produced by same current in 2 hours if current efficiency is 50 %? (A) 22 kg (B) 18 kg (C) 9 kg (D) 27 kg

Tardigrade Admin · Accepted Answer

(WCa/ECa)= (WAl/EAl) ⇒ (40/20)=(WAl/9) ⇒ WAl=18 kg As current efficiency is 50 % so, WAl= 9 kg

Q. A factory produces $40 k g$ of calcium in two hours by electrolysis. How much aluminium can be produced by same current in $2 h o u rs$ if current efficiency is $50%$ ?

22 kg

18 kg

9 kg

27 kg

$\frac{W _{C a}}{E _{C a}} = \frac{W _{A l}}{E _{A l}}$

$\Rightarrow \frac{40}{20} = \frac{W _{A l}}{9}$

$\Rightarrow W_{A l} = 18 k g$

As current efficiency is $50%$ so, $W_{A l} = 9 k g$

Q. A factory produces 40kg of calcium in two hours by electrolysis. How much aluminium can be produced by same current in 2hours if current efficiency is 50%?