Home
Class 11
PHYSICS
Due to thermal ecpansion with rise in te...

Due to thermal ecpansion with rise in temperature
(a) Metallic scale reading becomes lesser than true value
(b) A floating body sinks a little more
(c) The weight of a body in a liquid increases

A

Only `(a)` is correct

B

`(a)` & `(b)` are correct

C

`(a), (b)` & `(d)` are correct

D

`(a), (b)` & `(c)` are correct

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    NARAYNA|Exercise LEVEL - I (C.W.)|24 Videos

  • THERMAL PROPERTIES OF MATTER

    NARAYNA|Exercise LEVEL - II (C.W.)|20 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    NARAYNA|Exercise EXERCISE - IV|39 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Exercise|187 Videos

Similar Questions

Explore conceptually related problems

Newton’s law of cooling says that the rate of cooling of a body is proportional to the temperature difference between the body and its surrounding when the difference in temperature is small. (a) Will it be reasonable to assume that the rate of heating of a body is proportional to temperature difference between the surrounding and the body (for small difference in temperature) when the body is placed in a surrounding having higher temperature than the body? (b) Assuming that our assumption made in (a) is correct estimate the time required for a cup of cold coffee to gain temperature from 10^(@)C to 15^(@)C when it is kept in a room having temperature 25^(@)C . It was observed that the temperature of the cup increases from 5^(@)C to 10^(@)C in 4 min

Give reasons for the following. (a) Liquids can be taken in an open container while gas requires a closed container. (b) Honey cannot be poured into another container as easily as water (c) Gases flow more than liquids. (d) As water is subjected to heating, its temperature increases and becomes constant at 100^(@)C even though water is still there in the container and the supply of heat is continued. (e) When a solid substance is subjected to heating, it dissappears without leaving any liquid.

State whether the following statements are true or false: (a) A falling stone also attracts the earth. (b) The force of gravitation between two objects depends on the nature of medium between them. The value of G on the moon is about one-sixth ((1)/(6)) of the value of G on the earth. (d) The acceleration due to gravity acting on a freely falling body is directly proportional to the mass or the body. The weight of an object on the earth is about one-sixth of its weight on the moon.

Whichof the following statements are correct ? (a) With rise in temperature, surface tension of a liquid increases. (b) The rise of a liquid in a capillary is due to the phenomenon of diffusion. (c ) The boiling point of water is lower is Shimla than in Jalandhar. (d) The viscosity of a liquid is generally more than that of a gas.

Which statement is correct when adsorption of gas take place on metal surface? (a) delta H becomes less negative with pregress of reaction. (b) with progress of reaction the strength of residual forces increases. (c) NH_3 is adsorbed more than N_2 . (d) Equilibrium concentration of adsorbate increases with increase in temperature.

Fill in the following blanks with suitable words: (a) The acceleration due to gravity on the moon is about . (b) In order that the force of gravitation between two bodies may become noticeable and cause motion, one of the bodies must have an of that on the earth. extremely large ( c) The weight of an object on the earth is about ........of its weight on the moon. (d) The weight of an object on the moon is about (e) The value of g on the earth is about .... of that on the moon.

For a sponaneous reaction, the free energy change must be negative, Delta G=Delta H-T Delta S, Delta H is the enthalpy change during the reaction. T is the absolute temperature, and Delta S is the change in entropy during the reaction. Consider a reaction such as the formation of an oxide M+O_(2) to MO Dioxygen is used up in the course of this reaction. Gases have a more random structure (less ordered) than liquid or solids. Consequently gases have a higher entropy than liquids and solids. In this reaction S (entropy or randomness) decreases, hence Delta S is negative. Thus, if the temperature is raised then T Delta S becomes more negative,Since, TDelta S is substracted in the equation, then Delta G becomes less negative. Thus, the free energy change increases with the increase in temperature. The free energy changes that occur when one mole of common reactant (in this case dioxygen) is used may be plotted graphically aginst temperature for a number of reactions of metals to their oxides. The following plot is called an Ellingham diagram for metal oxide. Understanding of Ellingham diagram is extremely important for the efficient extraction of metals. For the conversion of Ca(s) to Ca(s) which of the following represent the Delta G vs. T ?

NARAYNA-THERMAL PROPERTIES OF MATTER-LEVEL - II (H.W.)
  1. Due to thermal ecpansion with rise in temperature (a) Metallic scale...

    Text Solution

    |

  2. The ratio of coefficients of apparent expansions of the same liquid in...

    Text Solution

    |

  3. If the coefficient of real expansion gamma(R) is 1% more than coeffici...

    Text Solution

    |

  4. When a block of iron in mercury at 0^@C, fraction K1of its volume is s...

    Text Solution

    |

  5. A boat is floating in water at 0^(0)C such that 97% of the volume of t...

    Text Solution

    |

  6. A sphere of diameter 8cm and mass 275g floats in a bath of liquid. As ...

    Text Solution

    |

  7. the coefficient of volume expansion of mercury is 20times the linear e...

    Text Solution

    |

  8. If gamma (apparent) of a liquid in a vessel is 76% of gamma(real) of t...

    Text Solution

    |

  9. The height of the mercury column in a barometer provided with a brass ...

    Text Solution

    |

  10. A cylinder contained 10kgof gas at pressure 10^(7) N / m^(2). The quan...

    Text Solution

    |

  11. An air bubble of volume V(0) is released by a fish at a depth h in a l...

    Text Solution

    |

  12. If the pressure of a gas contained in a closed vessel increases by X% ...

    Text Solution

    |

  13. A closed vessel contains 8 g of oxygen and 7 g of nitrogen. The total...

    Text Solution

    |

  14. A gas is enclosed in a vessel at a pressure of 2.5 atm. Due to leak in...

    Text Solution

    |

  15. The volume of a gas at 0^(0)C is 546cc. At constant pressure it is hea...

    Text Solution

    |

  16. A flask is filled with 13 g of an ideal gas at 27^(@)C and its tempera...

    Text Solution

    |

  17. A one litre spherer and a two litre sphere are connected with a capill...

    Text Solution

    |

  18. Two containers of equal volume contain the same gas at pressure P(1) a...

    Text Solution

    |

  19. During an experiment, an ideal gas is found to obey an additional law ...

    Text Solution

    |

  20. The density of a gas at N.T.P. is 1.5 g//lit. Its density at a pressur...

    Text Solution

    |