Home
Class 11
CHEMISTRY
The work done which is to be required to...

The work done which is to be required to increase the area of soap film of `10cmxx6cm` to `10cmxx11cm` is `3xx10^(-4)` J. The surface tension of the soap film is

A

`3xx10^(-4)Nm^(-1)`

B

`3xx10^(-3)Nm^(-1)`

C

`3xx10^(-2)Nm^(-1)`

D

`3xx10^(-1)Nm^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER

    PATHFINDER|Exercise QUESTION BANK|46 Videos
  • THERMODYNAMICS

    PATHFINDER|Exercise QUESTION BANK|433 Videos

Similar Questions

Explore conceptually related problems

The dimensions of a soap film is 10 cm xx 6 cm. If it is increased to 10 cm xx 11 cm, then work done is 3xx10^-4 J. What is the surface tension of the soap solution?

What is the excess pressure inside a spherical soap bubble of radius 5 cm if the surface tension of the soap film is 3.5xx10^(-2)Nm^(-1) ?

Determine the surface energy of a soap-water film formed on a frame of area 10^-3m^2 . Surface tension of soap-water =70xx10^-3N.m^-1 .

The excess pressure inside a soap bubble of radius 8mm raises the height of an oil columns by 2mm. Find the surface tension of the soap solution. Density of the oil=0.8g. Cm^-3 .

The radius of a soap-bubble is increased from 1 cm to 3 cm. What amount of work is done for this ? The surface tension of soap-water is 26 dyn. cm^-1 .

What will be the work done to form a soap-bubble of radius 5 cm? The surface tension of soap-water = 70 dyn. cm^-1

A drop of water of radius 1 mm is to be divided into 10^6 point drops of equal size. How much mechanical work should be done ? The surface tension of water = 72 dyn. cm^-1 .

PATHFINDER-STATES OF MATTER (GASES & LIQUIDS)-QUESTION BANK
  1. The critical temperature of O2 is less than. H2O because the H2O molec...

    Text Solution

    |

  2. What happens when ammonium dichromate is heated ?

    Text Solution

    |

  3. The work done which is to be required to increase the area of soap fil...

    Text Solution

    |

  4. Which of the following graphs correctly represents the variation of B...

    Text Solution

    |

  5. Two thermal insulated vessels 1 and 2 are filled with air at temperatu...

    Text Solution

    |

  6. Calculate the number of moles in the glass bulb shown in figure at 300...

    Text Solution

    |

  7. A gaseous mixture contains three gases A, B and C with a total number ...

    Text Solution

    |

  8. X mL of H2 gas has effused through a hole in a container in 5 second....

    Text Solution

    |

  9. At identical temperature and pressure, the rate of diffusion of H2 ga...

    Text Solution

    |

  10. (plot of log P, where P = vapour pressure of liquid against 1/T) The s...

    Text Solution

    |

  11. Five molecules of a gas are moving with speed 1, 2, 3, 4, 5 km/sec. Wh...

    Text Solution

    |

  12. Most probable velocity of hydrogen molecules at T^@C is V0. At (2T+2...

    Text Solution

    |

  13. For a fixed mass of gas at constant pressure, which of the following s...

    Text Solution

    |

  14. Which of the following statements are correct?

    Text Solution

    |

  15. Which of the following statements are correct?

    Text Solution

    |

  16. Which of the following statements are not correct ?

    Text Solution

    |

  17. Let u(av),u(rms) and u(mp) respectively denote the average speed, roo...

    Text Solution

    |

  18. Which of the following statements are not correct ?

    Text Solution

    |

  19. Which of the following statements are not correct?

    Text Solution

    |

  20. Which of the following statements are correct?

    Text Solution

    |