Home
Class 12
PHYSICS
using euipartion of energy, the specific...

using euipartion of energy, the specific heat `("in" jkg^(-1)K^(-1)`of aluminium at room temperature can be estimated to be (atomic weigh of aluminium=27)

A

`410`

B

`925`

C

`25`

D

`1850`

Text Solution

Verified by Experts

The correct Answer is:
B

Energy `E = (nfRT)/(2) = (m)/(M_(0))(6RT)/(2) … (i)`
(degree of freedom for Al = `6` , `M_(0)= "molecular mass of Al")` and `Q =msT`…..(ii) From (i) & (ii) `(3mRT)/(M_(0)) = msT`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE - 05 (B)|58 Videos
  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE - 05 (B) (MCQ)|9 Videos
  • GEOMETRICAL OPTICS

    ALLEN|Exercise EXERCISE - 04 (B)|15 Videos
  • CURRENT ELECTRICITY

    ALLEN|Exercise All Questions|427 Videos
  • GRAVITATION

    ALLEN|Exercise EXERCISE 4|9 Videos

Similar Questions

Explore conceptually related problems

A solid element has a specific heat of 1 Jg^(-1) K^(-1) . The atomic mass of the element is

On passing 0.1 F of electricity through aluminium chloride, the amount of aluminium meta deposited on cathode is (Atomic weight of Al=27 )

A solid aluminium sphere and a solid copper sphere of twice the radius are heated to the same temperature and are allowed to cool under identical surrounding temperatures. Assume that the emisssivity of both the spheres is the same. Find ratio of (a) the rate of heat loss from the aluminium sphere to the rate of all of temperature of tghe copper sphere. The specific heat copacity of aluminium =900Jkg^(-1) ^(@)C^(-1) . and that of copper =390Jkg^(-1) ^(@)C^(-1) . The denity of copper =3.4 times the correct wattage.

A current of 2.50 A passing through a heating coil immersed in 180 g of paraffin (specific heat capacity 2.00 J g^(-1) K^(-1) ) contained in a 100 g calorimeter (specific heat capacity 0.400 J g^(-1) K^(-1) ) raise the temperature from 5^(@)C below room temperature to 5^(@)C above room temperature in 100 s . the reading of the voltmeter connected across the heating coil is

Calculate the drif velocity of electrons in an aluminium wire of radius 2mm when a current of 5A passes through it. (Atomic weight of aluminium = 27, Avogardo number = 6 xx 10^(26) kg mol^(-1) and density of aluminium = 2710 kg m^(-3)

A piece of aluminium falls from a height of 200 m on a fixed non conductig slab which brings it to rest. If the specific heat of aluminium is 210 Cal//kg^(@)C . The increase in temperature of the slab immediately after collision (assume that there is no loss of heat) is

For a gas,the difference between the two specific heats is 4150Jkg^(-1) K^(-1) and the ratio of specific heats is 1.2.What is the specific heat of the gas at constant volume in Jkg^(-1 k^(-1) ?

For a magnetising field of intensity 2xx10^3Am^-1 , aluminium at 280K acquires intesity of magnetisation of 4*8xx10^-2Am^-1 . Find the susceptibility of aluminium at 280K . If the temperature of the metal is raised to 320K , what will be its susceptibility and intensity of magnetisation?

For a magnetising field of intensity 2xx10^3A//m , aluminium at 280K acquires intensity of magnetisation of 4*8xx10^-2Am^-1 . Find the susceptibility of aluminium at 280K . If the temperature of the metal is raised to 320K , what will be its susceptibility and intensity of magnetisation?

Two solid spheres, one of aluminium and the other of copper, of twice the radius are heated to the same temperature and are allowed to cool under the identical conditions. Given that specific heat of aluminium is 900 J//kg K and that ofcopper is 390 J//kg K. Specific gravity of aluminium and copper are 2.7 and 8.9 respectively. initial rates of fall of temperature, and the initial rates of loss of heat

ALLEN-GEOMETRICAL OPTICS-EXERCISE - 05 (A)
  1. A carnot engine operating between temperatures T(1) and T(2) has effic...

    Text Solution

    |

  2. Helium gas goes through a cycle ABCDA (consisting of two isochoric and...

    Text Solution

    |

  3. A Carnot engine, whose efficiency is 40%, takes in heat from a source ...

    Text Solution

    |

  4. The above p-v diagram represents the thermodynamic cycle of an engine,...

    Text Solution

    |

  5. One mole of a diatomic ideal gas undergoes a cyclic process ABC as sho...

    Text Solution

    |

  6. Three rods of Copper, Brass and Steel are welded together to from a Y ...

    Text Solution

    |

  7. A solid body of constant heat capacity 1J//^@C is being heated by keep...

    Text Solution

    |

  8. Consider a spherical shell of radius R at temperature T. The black bod...

    Text Solution

    |

  9. Consider an ideal gas confined in an isolated closed chamber. As the g...

    Text Solution

    |

  10. The P - V diagram of 2 gm of helium gas for a certain process A rarr B...

    Text Solution

    |

  11. In an ideal gas at temperature T , the average force that a molecule a...

    Text Solution

    |

  12. An experiment takes 10 minutes to raise the temperature of water in a ...

    Text Solution

    |

  13. using euipartion of energy, the specific heat ("in" jkg^(-1)K^(-1)of a...

    Text Solution

    |

  14. n' moles of an ideal gas undergoes a process AtoB as shown in the figu...

    Text Solution

    |

  15. An ideal gas under goes a quasi static, reversible process in which it...

    Text Solution

    |

  16. A pendulum clock loses 12s a day if the temperature is 40^@C and gains...

    Text Solution

    |

  17. 200 g of water is heated from 40^(@)C "to" 60^(@)C . Ignoring the slig...

    Text Solution

    |

  18. The ratio of work done by an ideal diatomic gas to the heat supplied b...

    Text Solution

    |

  19. Which of the following shown the correct relationship between the pres...

    Text Solution

    |

  20. A carbot freezer takes heat from water at 0^(@)C inside it and rejects...

    Text Solution

    |