Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 14

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The average kinetic energy of an ideal gas per molecule in $SI$ units at $25 º C$ will be _____.

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Important Questions on States of Matter: Gases and Liquids

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 15

As the temperature is raised from

20 ° C

to

40 ° C

, the average kinetic energy of the neon atoms changes by a factor of which of the following?

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 16

What is CORRECT about surface tension and viscosity of liquids?

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 17

Evaporation takes place __________ the liquid.

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 18

Assuming that the

O_{2}

molecule is spherical with a radius of

2 Å

, the percentage of the volume of the

O_{2}

molecules to the total volume of the gas at

S . T . P .

is

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 19

The ratio of the root-mean-square velocity of hydrogen at

50 K

to that of nitrogen at

500 K

is the closest to:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 20

If the pressure of a gas contained in a closed vessel is increased by

0.4 %

, when heated by

1 ° C

, its initial temperature must be:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 21

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at

27 ° C

and contain

0.70

mole of

H_{2}

at

0.5 atm

. One of the flasks is then immersed into a bath kept at

127 ° C

, while the other remains at

27 ° C

. The final pressure in each flask is:

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Chemistry Crash Course NEET>Chapter 3 - States of Matter: Gases and Liquids>Level 3>Q 22

Two flasks of equal volume are connected by a narrow tube (of negligible volume) all at $27 ° C$ and contain $0.70$ moles of $H_{2}$ at $0.5 atm$ . One of the flasks is then immersed into a bath kept at $127 ° C$ , while the other remains at $27 ° C$ . The number of moles of $H_{2}$ in flask $1$ and flask $2$ are: