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Gas laws

Total questions: 19

Worksheet time: 18mins

Name
Class
Date
1.

In Which Of The Following Conditions, The Distance Between The Molecules Of Hydrogen Gas Would Increase?

a)

[A].Increasing pressure on hydrogen contained in a closed container and Increasing the volume of the container of hydrogen gas.

b)

[B]. Increasing pressure on hydrogen contained in a closed container and Adding more hydrogen gas to the container without increasing the volume of the container

c)

[C]. Some hydrogen gas leaking out of the container and Increasing the volume of the container of hydrogen gas

d)

[D]. Some hydrogen gas leaking out of the container and Adding more hydrogen gas to the container without increasing the volume of the container

2.

Arun Is Doing His Homework Which Is Given By His Teacher. Would You Help Him To Choose The Incorrect Sentences?Arun Is Doing His Homework Which Is Given By His Teacher. Would You Help Him To Choose The Incorrect Sentences?

a)

[A]. Each potassium itself must be made up of millions of small particles which keep on spreading and imparting color to more and more of water.

b)

[B]. When we light an incense stick in one corner of a room, its fragrance spread in the whole room quickly.

c)

[C]. The best evidence that particles of matter are constantly moving comes from the studies of diffusion and Brownian motion.

d)

[D]. When a few crystals of copper sulphate are placed at the bottom of a beaker containing water, then water in the whole beaker turns green slowly.

3.

Gunja Is Completed Her Science Chapter Where She Wrote Some Statements. She Wants To Know Whether The Statements Are Correct Or Not? Gunja Wants To Take Help From You:

a)

[A]. There are some forces of attraction between the particles of matter which bind them together.

b)

[B]. The force of attraction is maximum in the particles of solid matter and minimum in the particles of gases matter

c)

[C]. A material which can flow easily and requires a vessel to keep it called fluid.

d)

[D] None of these

4.

When Heat Is Constantly Supplied By A Burner To Boiling Water, Then The Temperature Of Water During Vaporization:

a)

[A]. Rises very slowly

b)

[B]. Rises rapidly until steam is produced

c)

[C]. First rises and then becomes constant

d)

[D]. Does not rise at all

5.

In A Quiz Competition, You Are Asked A Question Where You Have To Choose The Statement Which Is/ Are Correct?

a)

[A]. Ammonia gas can be liquefied by applying high pressure and lowering the temperature.

b)

[B]. Solid carbon dioxide is stored under less-high pressure.

c)

[C]. The conversion of solid carbon dioxide into carbon dioxide gas is a change of state which is caused by the increase in pressure and decrease atmospheric temperature.

d)

[D]. Whatever be the temperature at which evaporation take place, the latent heat of vaporization need not be supplied whenever a liquid change into vapour or gas.

6.

During summer water kept in pot becomes Cool Because Of The Phenomenon Of

a)

[A]. Diffusion

b)

[B] Transpiration

c)

[C]. Osmosis

d)

[D]. Evaporation

7.

A centigrade and a Fahrenheit thermometer are dipped in boiling water. The water temperature lowered until the Fahrenheit thermometer registers 140 What is the fall in temperature as registered by the Centigrade thermometer?

a)

80

b)

60

c)

40

d)

30

8.

A gas behaves like an ideal gas under conditions of

a)

High pressure and low temperature

b)

High temperature and high pressure

c)

Low pressure and high temperature

d)

Low pressure and low temperature

9.

When the temperature is raised, the viscosity of the liquid decreases.


This is because

a)

Attraction between the molecules increases

b)

Covalent and hydrogen bond forces decrease

c)

Volume of the solution decreases

d)

Increase in temperature increases the average kinetic energy of the molecules which over comes the attractive force between them

10.

Which of the following gases has the lowest average speed at 25°C ?

a)

NH3

b)

O2

c)

CH4

d)

H2S

11.

If the four tubes of a car are filled to the same pressure with N₂. O2, H₂ and Ne separately then which one wil be filled first?

a)

O2

b)

H2

c)

Ne

d)

N2

12.

Choose correct equation of boyle's law

a)
b)
c)
d)
13.

An ideal gas expands according to PV- constant. On expansion the temperature of gas will

a)

Rise

b)

Drop

c)

Remain constant

d)

None of these

14.

Some assumptions from the kinetic molecular theory are listed below. Which one is most frequently cited to explain Charles's law

a)

Collisions of gas particle are elastic and total kinetic energy of the gas is constant

b)

A gas consists of tiny particles moving in random straight line motion

c)

The volume of the particle is negligible compared to the volume of the gas

d)

The average kinetic energy of gas articles is proportional to the Kelvin temperature

15.

The question was Given a container of carbon dioxide gas with an initial volume of 474 L and a temperature of 41 C


calculate the temperature if the volume is changed to 505 L ( answer in number)

(a)  

16.

According to Boyle's Law

a)

The change in the volume of a gas in a closed container is directly proportional to changes in pressure

b)

The volume of gas in a closed container does not change when pressure changed

c)

The change in the volume of a gas in a closed container is inversely proportional to change pressure

d)

Increasing the pressure on a volume of gas wall cause the volume to increase

17.

Given a container of air with an initial volume of 140 L and pressure of 25 Pa calculate the pressure if the volume is changed to 392 L


Given your answer to the nearest Pa.

(a)  

18.

Given a container of helium gas with an initial volume of 319 L and pressure of 36 Pa.


calculate the pressure if the volume is changed to 128 L

Give your answer in nearest pa

(a)  

19.

How was the quizz

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