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NEET
Exam
NEET
Subject
Physics
Chapter
Kinetic Theory of Gases

NEET · Physics · Kinetic Theory of Gases

Statement (I) : Gas thermometers are less sensitive than liquid...

Statement (I) : Gas thermometers are less sensitive than liquid thermometers.

Statement (II) : The ratio of universal gas constant and avagadro's number is called Boltzman's constant.

Statement (III) : The density of a given mass of a gas at constant pressure is inversely proportional to its absolute temperature.

The correct option among the following is

Options

  1. AStatements I, II, III are true.
  2. BStatements I, II are true, but statement III is false.
  3. CStatements II, III are true, but statement I is false.
  4. DStatements I, II, III are false.

Correct answer

C. Statements II, III are true, but statement I is false.

Step-by-step solution

Thermal expansion in gases is more than thermal expansion in liquids. Therefore, gas thermometers are more sensitive than liquid thermometers.

The ratio of universal gas constant and avagadro's number is called Boltzman's constant. k=RNAk = \dfrac{R}{{N}_{A}}

At constant pressure, V∝TV ∝ T therefore, the density of a given mass of a gas at constant pressure is inversely proportional to its absolute temperature.

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