Home
Class 11
PHYSICS
A brass boiler has a base area of 0.15m^...

A brass boiler has a base area of `0.15m^2` and thickness 1 cm. It boils water at the rate of 6 kg per minute when placed on a gas stove. Estimate the temperature of the part of the flame in contact with the boiler. Thermal conductivity of brass is `=109Js^(-1)m^(-1)K^(-1)`, Heat of vapourisation of water is `2256xx10^3Jkg^(-1)`

Text Solution

Verified by Experts

`238 ^(@) C`
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIME OF MATTER

    NCERT TAMIL|Exercise EXERCISES|31 Videos

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    NCERT TAMIL|Exercise EXERCISES (TRUE OR FALSE)|5 Videos

  • THERMODYNAMICS

    NCERT TAMIL|Exercise EXERCISES|10 Videos

Similar Questions

Explore conceptually related problems

Calculate the heat energy required to raise the temperature of 2 kg of water from 10^@C to 50^@C . Specific heat capacity of water is 4200 JKg^(-1) K^(-1)

Indian style of cooling drinking water is to keep it in a pitcher having porous walls. Water comes to the outer surface very slowly and evaporates .Most of the energy needed for evaporation is taken from the water itself and the water is cooled down. Assume that a pitcher contains 10kg water and 0.2g of water comes out per second. Assuming no backward heat transfer from the atmosphere to the water, calculate the time in which the temperature decreases by 5^(@)C . Specific heat capacity of water = 4200J kg^(-1).^@C^(-1) and latent heat of vaporization of water = 2.27 xx 10^(6)J kg^(-1)

In Joly's differential steam calorimeter, 3g of an ideal gas is ccontained in a rigid closed sphere at 20^@C . The sphere is heated by steam at 100^@C and it is found that an extra 0.095 g of steam has condensed into water as the temperature of the gas becomes constant. Calculate the specific heat capacity of the gas in (Jg^(-1) K^(-1). The latent heat of vaporization of water = 540 cal g ^(-1) .

Calculate the increase in the internal energy of 10 g of water when it is heated from 0^(0)C to 100^(0)C and converted into steam at 100 kPa. The density of steam =0.6 kg m^(-3) specific heat capacity of water =4200 J kg^(-1 ^(0)C^(-3) latent heat of vaporization of water =2.25xx10^(6) J kg^(-1)

Steam at 120^(@)C is continuously passed through a 50-cm long rubber tube of inner and outer radii 1.0cm and 1.2cm . The room temperature is 30^(@)C . Calculate the rate of heat flow through the walls of the tube. Thermal conductivity of rubber = 0.15Js^(-1)m^(-1)C^(-1) .

calculate the increase in internal energy of 1 kg of water at 100^(o)C when it is converted into steam at the same temperature and at 1atm (100 kPa). The density of water and steam are 1000 kg m^(-3) and 0.6 kg m^(-3) respectively. The latent heat of vaporization of water =2.25xx10^(6) J kg^(1) .

1kg ice at 0^(@)C is mixed with 1kg of steam at 100^(@)C . What will be the composition of the system when thermal equilibrium is reached ? Latent heat of fusion of ice = 3.36xx 10^(6)J kg^(-1) and latent heat of vaporization of water = 2.26 xx 10^(6)J kg^(-1)

A metal block of density 6000 kg m^(-3) and mass 1.2 kg is suspended through a spring of spring constant 200Nm^(-1) .The spring - block system is dipped in water kept in a vessel .The water has a mass of 250g and the block is at a height 40cm above the bottom of the vessel .If the support to the spring is broken , what will be the rise in the temperature of the water specific heat capacity of the block is 250J kg^(-1)K^(-1) and that of water is 4200J kg^(-1)K^(-1) .Heat capacities of the vessel and the spring are negligible .

What is the temperature of the steel - copper junction in the steady state of the system shown in Fig.11.15. Length of the steel rod = 15.0 cm, length of the copper reod = 10.0 cm, temperarure of the furnace = 300 ^(@) C , temperature of the furnace = 300 ^(@) C , temperature of the other end = 0^(@) C . The are of cross section of the steel rod is twice that of the copper rod. ( Thermal conductivity of steel = 50.2 J s^(-1) m^(-1) K^(-1) , and of copper = 385 J s^(-1) m^(-1) K^(-1)) .

A body of length 1m having cross sectional area 0.75 m^2 has heat flow through it at the rate of 6000 Joule / sec . Then find the temperature difference if K = 200 Jm^-1K^-1

NCERT TAMIL-THERMAL PROPERTIME OF MATTER-EXERCISES
  1. A brass wire 1.8 m long at 27^(@)C is held taut with little tension be...

    Text Solution

    |

  2. A brass rod of length 50 cm and diameter 3.0 mm is joined to a steel r...

    Text Solution

    |

  3. The coefficient of volume expansion of glycerine is 49 xx 10^(-5)//^(@...

    Text Solution

    |

  4. A 10 kW drilling machine is used to drill a bore in a small aluminium ...

    Text Solution

    |

  5. A copper block of mass 2.5 kg is heated in a furnace to a temperature ...

    Text Solution

    |

  6. In an experiment on the specific heat of a metal a 0.20 kg block of th...

    Text Solution

    |

  7. Given below are observations on molar specific heats at room temperatu...

    Text Solution

    |

  8. A child running a temperature of 101^F is given and antipyrin (i.e. a ...

    Text Solution

    |

  9. A thermocole cubical icebox of side 30 cm has a thickness of 5.0 cm if...

    Text Solution

    |

  10. A brass boiler has a base area of 0.15m^2 and thickness 1 cm. It boils...

    Text Solution

    |

  11. Explain why : (a) A body with large reflectivity is a poor emitter. (...

    Text Solution

    |

  12. A body cools from 80^(@)C to 50^(@)C in 5 minutes. Calculate the time ...

    Text Solution

    |

  13. Answer the following question beased on tbhe P-T phase diagram of carb...

    Text Solution

    |

  14. Answer the following question beased on tbhe P-T phase diagram of carb...

    Text Solution

    |

  15. Answer the following questions based on the p-T phase diagram of carbo...

    Text Solution

    |

  16. Answer the following questions based on the p-T phase diagram of carbo...

    Text Solution

    |

  17. Answer the following questions based on the P – T phase diagram of CO(...

    Text Solution

    |

  18. Answer the following questions based on the P – T phase diagram of CO(...

    Text Solution

    |

  19. Answer the following questions based on the P – T phase diagram of CO(...

    Text Solution

    |

  20. Answer the following questions based on the P – T phase diagram of CO(...

    Text Solution

    |