Home
Class 11
PHYSICS
Steam at 100^(@)C is passed through a tu...

Steam at `100^(@)C` is passed through a tubeof radius 5 cm and length 3 m. If the thickness of tube be 2 mm and conductivity of its material be `2xx10^(-4)" cal "cm^(-1) K^(-1) s^(-1)`, calculate the rate of loss of heat in `js^(-1)` . The outside temperature is `20^(@)C`.

Text Solution

Verified by Experts

The correct Answer is:
`32026 Js^(-1)`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    SL ARORA|Exercise Exercise|342 Videos

  • THERMODYNAMICS

    SL ARORA|Exercise Problems from competitive examinations|22 Videos

  • Thermal Properties of Matter

    SL ARORA|Exercise Exercise|449 Videos

  • Units and Measurements

    SL ARORA|Exercise Exercise|499 Videos

Similar Questions

Explore conceptually related problems

Steam at 373K is passed through a tube of radius 50 cm and length 3m. If thickness of the tube be 2 mm and conductivity of its material be 2xx10^(-4) / cal/s-cm-K, the rate of loss of heat in Js^(-1) is (The outside temperature is 282K).

Steam at 373 K is passed through a tube of radius 10 cm and length 10 cm and length 2m . The thickness of the tube is 5mm and thermal conductivity of the material is 390 W m^(-1) K^(-1) , calculate the heat lost per second. The outside temperature is 0^(@)C .

Heat is flowing through a rod of length 25.0 cm having cross-sectional area 8.80 cm^(2) . The coefficient of thermal conductivity for the material of the rod is K = 9.2 xx 10^(-2) kcal s^(-1) m^(-1) .^(@)C^(-1) . The Temperatures of the ends of the rod are 125^(@)C and 0^(@)C in the steady state. Calculate (i) temeprature gradient in the rod (ii) temperature of a point at a distance of 10.0 cm from the hot end and (iii) rate of flow of heat.

Steam at 100^(@)C is passed into 20 g of water at 10^(@)C when water acquire a temperature of 80^(@)C , the mass of water present will be [Take specific heat of water = 1 cal g^(-1).^(@) C^(-1) and latent heat of steam = 540 cal g^(-1) ]

Stream at 100^(@)C is passed into 20 g of water at 10^(@)C . When water acquires a temperature of 80^(@)C , the mass of water present will be [Take specific heat of water =1 cal g^(-1) .^(@)C^(-1) and latent heat of steam =540 cal g^(-1) ]

If the coefficient of conductivity of aluminium is 0.5 cal cm^(-1) s^(-1).^(@)C^(-1) , then the other to conductor 10 cal s^(-1) cm^(-2) in the steady state, the temperature gradient in aluminium must be

The walls of a closed cubical box of edge 50cm are mdade of a material of thickness 1mm and thermal conductivity 4xx10^(-4) cal s^(-1)cm^(-1).^(@)C^(-1) the interior of the box maintained at 100^(@)C above the outside temperature by a heater placed inside the box and connected acros a 400 V d.c. source. Calculate the resistance of the heater.

Length of a hollow tube is 5 m , its over diamter is 10 cm and thickness of its wall is 5 mm. If resistivity of the material of the tube is 1.7 xx 10^(-8) Omega xx m then resistance of tube will be

SL ARORA-THERMODYNAMICS-Problems for self practice
  1. Water is boiled in a rectangular steel tank of thickness 2 cm by a con...

    Text Solution

    |

  2. Estimate the rate at which ice would melt in a wooden box 20 mm thick ...

    Text Solution

    |

  3. Steam at 100^(@)C is passed through a tubeof radius 5 cm and length 3 ...

    Text Solution

    |

  4. The outer face of a rectangular slab of equal thickness of iron and br...

    Text Solution

    |

  5. The thermal conductivity of copper is four times that of brass. Two ro...

    Text Solution

    |

  6. A composite wall of area A is made of equal thickness of lead and iron...

    Text Solution

    |

  7. A wall consists of two layer, one of thickness 3 cm and other of 6 cm....

    Text Solution

    |

  8. The plane surface of two sheets of different metals are kept in contac...

    Text Solution

    |

  9. The temperature difference between the two ends of a bar 1.0 m long is...

    Text Solution

    |

  10. The ratio of the areas of cross-section of two rods of different mater...

    Text Solution

    |

  11. In fig, two bars of the same metal are connected. The length of the fi...

    Text Solution

    |

  12. A room at 20^@C is heated by a heater of resistence 20 ohm connected t...

    Text Solution

    |

  13. The sun radiates maximum energy at wavelength 4753 Å. Estimate the sur...

    Text Solution

    |

  14. The temperature of an ordinary electric bulb is around 3000 K. At what...

    Text Solution

    |

  15. A furnace is at a temperature of 2000K. At what wavelength will it rad...

    Text Solution

    |

  16. A black body radiates energy at the rate of 1.452 xx 10^(10) erg s^(-1...

    Text Solution

    |

  17. Calculate the temperature (in K) at which a perfect black body radiate...

    Text Solution

    |

  18. A full radiator at 0^(@)C radiates energy at the rate of 3.2 xx 10^(4)...

    Text Solution

    |

  19. Surface temperature of sun is 6000 K. Considering sun as a perfectly b...

    Text Solution

    |

  20. The original temperature of a black body is . 727^(@) C . The tempera...

    Text Solution

    |