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The gas constant for a molecule is (term...

The gas constant for a molecule is (terms have usual meaning)
a) K
b) R/N
c) R/NT
d) R/m

A

Only 'a'

B

only C

C

Both a & b

D

only d

Text Solution

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The correct Answer is:
C
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Why the gas constant 'R' is called universal gas constant?

Value of gas constant (R) is

(A): Mean free path of gas molecules, varies inversely as density of the gas. (R): Mean free path of gas molecules is defined as the average distance travelled by a molecule between two successive collisions.

(A): For an ideal gas, at constant temperature, the product of the pressure and volume is a constant. (R): The mean square velocity of the molecules is inversely proportional to mass.

(A): The root mean square and most probable speeds of the molecules in a gas are the same. (R): The Maxwell distribution for the speed of the molecules in a gas is a symmetrical.

AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-IA
  1. Boyles law is applicable when a) Temperature is constant b) Gas is...

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  2. Boyle's law can be verified by a) Boyle's law apparatus b) Quill t...

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  3. The gas constant for a molecule is (terms have usual meaning) a) K ...

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  4. The units of universal gas constant is a) Jmol^(-1)K^(-1) b) Jkg^(...

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  5. A) Generally solids are better conductors than liquids B) Liquids ar...

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  6. Water is taken in a metal container and is heated at its bottom. The a...

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  7. For a good cooking vessel, the necessary characterstics are a) Large...

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  8. A) Heat transfer by conduction & convection require a material medium ...

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  9. A) A body of low Thermal capacity gets heated or cooled quickly B) G...

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  10. Two identical conductors made of metals of coefficients of thermal con...

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  11. A) A hot hollow sphere in vacuum cools by convection B) A hot solid ...

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  12. A) Natural convection can take place in gravity free region B) Force...

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  15. A spherical black body is of radius 'r'. Its radiating power is 'P' an...

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  16. Statement (A) : Water can be boiled in a thin paper box without even c...

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  17. A piece of charcoal and a piece of shining steel of the same area are ...

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  18. A glass full of hot milk is poured on the table. It begins to cool gra...

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  20. In Newton's law of cooling, if the rates of emission of radiation by a...

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