Explain Why, a Small Volume of Water in a Kettle Can Fill a Kitchen with Steam. - Science

Advertisements
Advertisements
Short Note

Explain why, a small volume of water in a kettle can fill a kitchen with steam.

Advertisements

Solution

A small volume of water heated in a kettle produces water vapour, which being a gas, spreads in the room due to weak inter-molecular forces of attraction between the vapour particles and very high kinetic energy.

  Is there an error in this question or solution?
Chapter 1: Matter in Our Surroundings - Very Short Answers [Page 21]

APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 1 Matter in Our Surroundings
Very Short Answers | Q 70 | Page 21

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

For any substance, why does the temperature remain constant during the change of state?


What do you mean by the change of state? Write the flow chart showing the complete cycle of change of state.


What do you observe when :

water is boiled


What do you observe when :

ime is dissolved in water.


Tick (√) the correct alternative from the choice given for the following statement.

When you put some ice cubes in a glass, droplets of water are formed on the outer wall of the glass. This explains the phenomenon of


Tick (√) the correct alternative from the choice given for the following statement.

When we add water to the following substances, which one will show a chemical change?


Tick the most appropriate answer.

Melting of ice is a


Ripening of fruits is a desirable change.


Give an example of desirable change which can also be undesirable.


How do you say that the process of digestion is a chemical change ?


The Kelvin temperature is 270 K. What is the corresponding Celsius scale temperature ?


What is meant by saying that the latent heat of fusion of ice is 3.34 × 105 J/kg ?


State whether the following statement is true or false :
Solid carbon dioxide is stored under low pressure.


Fill in the following blank with suitable words :

Gases can be liquefied by applying ....................... and lowering .....................


Define 'melting point' of a substance ? What is the melting point of ice


What are the two ways in which the physical states of matter can be changed ?


The latent heat of vaporisation of water is :


The conversion of a solid into vapours without passing through the liquid state is called :


Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air ?

  1. increase in pressure
  2. ncrease in temperature
  3. decrease in pressure
  4. decrease in temperature

Define Intermodular space


Define the following terms: Boiling point


Water cycle is an example of interconversion of states of water. Explain


Fill in the blanks:

Water boils at ______.


Write whether the following statement is true or false:

Solids have the larger inter-molecular space


Write whether the following statement is true or false:

A gas has no free surface.


Name the phenomenon which causes the following changes:

Disappearance of camphor when exposed to air


Name the phenomenon which causes the following changes:

Conversion of ice into water


Explain the term melting point


State which of the following statement is true or false. If false write the correct statement.

Solids are highly compressible and rigid.


In the paragraph below, write ‘solid’, ‘liquid’ or ‘gas’ in each of the brackets depending on the substance referred to just before.

On a bright sunny day, Riya and Gargi are playing with a ball ( ) in the park. Gargi feels thirsty. So, Riya brings tender coconut water ( ) for her. At the same time, a strong breeze ( ) starts blowing and it also begins to rain ( ). They run back into the house ( ), change their clothes ( ), and then their mother gives them a cup ( ) of hot milk ( ) to drink.


Discuss.

Riya pours some water from her bottle into another bottle. Does it change the shape of the water?


Discuss.

Halima picks up a small stone from the ground and puts it in the water in a dish. Does the shape of the stone change?


Write the properties of this substance.

Water


What is it made from? Why?

The sheets used for roofing.


What will happen if....? And why?

Rubber is not fitted on a pair of tongs.


What will happen if....? And why?

A knife is made of wood.


What will happen if....? And why?

An axe is made of rubber.


Why does this happen?

Coconut oil thickens in winter.


Why does this happen?

What you see in the picture.


Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.

Are any new products formed during the above process.


Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.

Can the change be reversed or is it irreversible?


State whether the following statement is true or false. If false write the correct statement.

Desirable changes are meaningful, while undesirable changes are unfavourable.


State whether the following statement is true or false. If false write the correct statement.

During physical changes, the composition of the original substance is not altered, but the properties of the original substance are altered.


State whether the following statement is true or false. If false write the correct statement.

During a chemical change the composition of the original substance is not altered and the change is irreversible.


Fill in the blank with the correct word of the statement given below:

Sublimation is _______ a change of state of matter.


What is inter-conversion of matter. Give the meaning of the terms involved in inter-conversion of matter

(a) Melting
(b) Vaporisation
(c) Liquefaction or condensation,
(d) Solidification or freezing
(e) Sublimation.


Draw a labelled schematic diagram representing the terms (a) to (e) involved in the inter-conversion of matter.


Select the correct answer from A, B, C, D & E for the statement given below:

The state of matter which has ___________ least density & no free surfaces.


With reference to the liquid state of matter – answer the following

On heating, the liquid, do the particles gain or lose energy.


With reference to the liquid state of matter – answer the following

At what point will the particles become free and escape as a gas.


Give the reason for the following 

Solids cannot be compressed, but gases are highly compressible.


Give the reason for the following: 

The kinetic energy of molecules of gases is very large & of solids, the least.


Give the reason for the following 

On heating a sublimable solid, the molecules break free & escape from the surface of the solid directly into vapour.


Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in following case.

During the melting of solids, the inter-particles space __________.


Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in the following case.

During liquefaction, the particles ________ energy.


Share
Notifications



      Forgot password?
Use app×