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A constant pressure thermometer when immersed in ice-cooled water gives volume reading $47.5$ unit and when immersed in boiling liquid, it gives a reading of $67$ unit. What is the boiling point of the liquid?

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Important Questions on Kinetic Theory of Gases

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-1>Q 52

A ball hits the floor and rebounds after inelastic collision. In this case:

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-1>Q 53

In the nuclear fusion reaction

{}_{1}^{2}H + {}_{1}^{3}H \overset{}{\to} {}_{2}^{4}{He} + n

. It is given that the repulsive potential energy between the two nuclei is

~ 7.7 \times 10^{- 14} J

, the temperature at which the gases must be heated to initiate the reaction is nearly

[

Boltzmann's constant

k = 1.38 \times 10^{- 23} J K^{- 1}]

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-2>Q 1

An ideal gas is initially at temperature

T

and volume

V .

Its volume is increased by

Δ V

due to an increase in temperature

Δ T,

pressure remaining constant. The quantity

δ = \frac{Δ V}{V Δ T}

varies with temperature as:

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-2>Q 2

Which of the following graphs correctly represents the variation of

β = \frac{- (\frac{d V}{d P})}{N}

with

P

for an ideal gas at constant temperature?

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-2>Q 3

One mole of a monatomic ideal gas is taken along two cyclic processes $E \to F \to G \to E$ and $E \to F$ $\to H \to E$ as shown in the $P V$ diagram. The processes involved are purely isochoric, isobaric, isothermal or adiabatic.

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Match the paths in List I with the magnitudes of the work done in List II and select the correct answer using the codes given below the lists.

\begin{matrix} List I & List II \\ P. & G → E & 1 . & 160 P_{0} V_{0} ln 2 \\ Q. & G → H & 2 . & 36 P_{0} V_{0} \\ R. & F → H & 3 . & 24 P_{0} V_{0} \\ S. & F → G & 4 . & 31 P_{0} V_{0} \end{matrix}

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-2>Q 4

Two containers of equal volume contain the same gas at pressure

P_{1}

and

P_{2}

and absolute temperature

T_{1}

and

T_{2}

, respectively. On joining the vessels, the gas reaches a common pressure

P

and common temperature

T

. The ration

P / T

is equal to

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-2>Q 5

Assertion: An ideal gas is enclosed within a container fitted with a piston. When volume of this enclosed gas is increased at constant temperature, the pressure exerted by the gas on the piston decreases.

Reason: In the above situation, the rate of molecules striking the piston decreases. If the rate ạt which molecules of a gas having same average speed striking a given area of the wall decreases, the pressure exerted by gas on the wall decreases.

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Alpha Question Bank for Medical: Physics>Chapter 18 - Kinetic Theory of Gases>Exercise-2>Q 6

Assertion: Different gases at the same conditions of temperature and pressure have same root mean square speed.

Reason: Average K.E. of gas is inversely proportional to temperature in Kelvin.

A constant pressure thermometer when immersed in ice-cooled water gives volume reading 47.5 unit and when immersed in boiling liquid, it gives a reading of 67 unit. What is the boiling point of the liquid?

Important Questions on Kinetic Theory of Gases

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A constant pressure thermometer when immersed in ice-cooled water gives volume reading $47.5$ unit and when immersed in boiling liquid, it gives a reading of $67$ unit. What is the boiling point of the liquid?