ECE of copper is 3.3 × 10-7 kg / C. If 100 kWh energy is consumed at 33 V in a copper voltameter, then mass of copper liberated is

Question

ECE of copper is 3.3 × 10-7 kg / C. If 100 kWh energy is consumed at 33 V in a copper voltameter, then mass of copper liberated is (A) 3.6kg (B) 3.3kg (C) 1kg (D)  1 mg

Tardigrade Admin · Accepted Answer

Mass of copper liberated m=z i t =z((P/V)) t =(3.3 × 10-7)((100 × 36 × 105/33)) =3.6 kg

Q. ECE of copper is $3.3 \times 1 0^{- 7} k g / C$ . If $100 kWh$ energy is consumed at $33 V$ in a copper voltameter, then mass of copper liberated is

3.6kg

3.3kg

1kg

$1 m g$

Mass of copper liberated
$m = z i t$
$= z (\frac{P}{V}) t$
$= (3.3 \times 1 0^{- 7}) (\frac{100 \times 36 \times 1 0 ^{5}}{33})$
$= 3.6 k g$

Q. ECE of copper is 3.3×10−7kg/C. If 100kWh energy is consumed at 33V in a copper voltameter, then mass of copper liberated is

3.6kg

3.3kg

1kg

1mg

Mass of copper liberated m=zit =z(VP​)t =(3.3×10−7)(33100×36×105​) =3.6kg

Q. ECE of copper is $3.3 \times 1 0^{- 7} k g / C$ . If $100 kWh$ energy is consumed at $33 V$ in a copper voltameter, then mass of copper liberated is

$1 m g$

Mass of copper liberated
$m = z i t$
$= z (\frac{P}{V}) t$
$= (3.3 \times 1 0^{- 7}) (\frac{100 \times 36 \times 1 0 ^{5}}{33})$
$= 3.6 k g$