Home
Class 12
PHYSICS
When 1 gm hydrogen (e.c.e.=1.044xx10^(-8...

When 1 gm hydrogen `(e.c.e.=1.044xx10^(-8)kg//C)` forms water, 34 kcal heat is liberated. The minimum voltage required to decompose water is

A

`0.75 V`

B

3 V

C

`1.5 V`

D

`4.5 V`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Assertion & Reason|2 Videos
  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos
  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

Similar Questions

Explore conceptually related problems

1 calorie is the heat required to increased the temperature of 1 gm of water by 1°C from

water gets decomposed when heated above 100^(@)C

10 gm of ice at -20^(@)C is dropped into a calorimeter containing 10 gm of water at 10^(@)C , the specific heat of water is twice that of ice. When equilibrium is reached the calorimeter will contain:

Heat required to increases the temperature of 1kg water by 20^(@)C

When water is heated from 0^(@)C to 10^(@)C , the volume of water

The mass to charge ratio (m//e) for a cation of 1.5xx10^(-8) kg//C. What is the mass of this cation?

When a detonating gas explodes, 34.5kcal ar liberted per gram of hydrogen. Use this observation to ding the minimum emf of a battery at which the electrolysis of water is possible. (A faraday=96,500C.)

H_(2(g)) + 1/2 O_(2(g)) to H_2 O_((l)) , Delta H =- 68 kcal Amount of heat is liberated when 7.2 g of water is decomposed is ______ .