You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Physics

Specific Heat Capacity

ECE of copper...

Question

ECE of copper is $3.3 \times 10^{- 7} k g / C$ . If $100$ kWh energy is consumed at $33$ V in a copper voltameter, then mass of copper liberated is?

3.6

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

3.3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $3.6$ kg
Mass of copper liberated
$m = z i t = z (\frac{P}{V}) t$
$= (3.3 \times 10^{- 7}) (\frac{100 \times 36 \times 10^{5}}{33})$
$= 3.6$ kg.

Suggest Corrections

Similar questions

Q. If 100KWh of energy is consumed at 33V in copper voltameter, the mass of copper liberated is

(

Given: e.c.e. of copper

= 3.3 \times

^{- 7}

kg/C

)

Q. If 100 KWh of energy is consumed at 33V in a copper voltameter, then the mass of copper liberated will be

(

Given e.c.c. of

C u = 0.33 \times 10^{- 6}

kgC

^{- 1})

Q. A copper voltameter is connected in series with a coil of resistance

10 Ω

. When a steady current is passed through the circuit,

0.297 g

of copper is found to be deposited at the cathode in

15 m i n

. The electrochemical equivalent of copper is

3.3 \times 10^{- 7} k g C^{-}

. Heat liberated in the coil is:

Q. One gram of copper is deposited in a copper voltameter when a current of

0.5

A flows for

30

minutes. Then, the current required to deposit

2

g of silver in a silver voltmeter in the same time is (ece of copper

= 3.3 \times 10^{- 4} g C^{- 1},

ece of silver

= 1.1 \times 10^{- 4} g C^{- 1}

)

A current of electricity is passed through copper voltameter and a water voltameter connected in series. If the copper of the copper voltameter now weighs $16$ mg less, hydrogen liberated at the cathode of the water voltameter measures about (at STP)

Join BYJU'S Learning Program

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

The correct option is A 3.6kgMass of copper liberatedm=zit=z(PV)t=(3.3×10−7)(100×36×10533)=3.6kg.

ECE of copper is $3.3 \times 10^{- 7} k g / C$ . If $100$ kWh energy is consumed at $33$ V in a copper voltameter, then mass of copper liberated is?

The correct option is A $3.6$ kg
Mass of copper liberated
$m = z i t = z (\frac{P}{V}) t$
$= (3.3 \times 10^{- 7}) (\frac{100 \times 36 \times 10^{5}}{33})$
$= 3.6$ kg.