In which of these will Brownian motion be higher- Water or Water vapour. Give a reason.

Academic Chemistry NCERT Class 8

Brownian motion in a gas is more than 1016 collisions in a second, and even greater in a liquid where it is about 1020 collision in one second.

Therefore, water will have higher Brownian Motion than water vapour.

Tutorialspoint

Updated on: 10-Oct-2022

61 Views

Transpiration is a process in which plants(a) receive water from soil(b) absorb water vapour from air(c) prepare food from water(d) release water vapour.
Which of the following is not a physical change?(a) Boiling of water to give water vapour(b) Melting of ice to give water(c) Dissolution of salt in water(d) Combustion of Liquefied Petroleum Gas (LPG)
Which has higher refraction index : water of glass?
Brownian Motion Zig Zag Motion
How will you demonstrate that water vapour is present in air?
Which of the two diffuses slower: bromine vapour into air or copper sulphate into water?
Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho how these droplets of water were formed. Which of the following should be Boojho’s answer?(a) Evaporation of water from the glass.(b) Water that seeped out from the glass.(c) Evaporation of atmospheric water vapour.(d) Condensation of atmospheric water vapour.
An object weighs $500\ grams$ in air. This object is then fully immersed in water. State whether it will weigh less in water or more in water. Give reason for your answer.
Clouds are(a) tiny drops of water floating in air(b) mixture of dust and water vapour(c) particles of water vapour(d) rain drops in air.
Explain with the help of a labelled ray diagram, why a pencil partly immersed in water appears to be bent at the water surface. State whether the bending of pencil will increase or decrease if water is replaced by another liquid which is optically more dense than water. Give reason for your answer.
How will you demonstrate that water vapour is present in the air?
Keep a chilled bottle from the fridge on normal room temperature, you will find some droplets of water on it. Give a reason for these droplets.
Can we reverse the following changes? If yes, suggest the name of the method.(a) Water into water vapour(b) Water vapour into water(c) Ice into water(d) Curd into milk
Milk and water when mixed form miscible liquid. Give reason.
Will cotton float or sink in water?

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements