Tag: law of definite proportions

Questions Related to law of definite proportions

In which of the following processes evaporation involves

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  1. Hot tea gets cool over time

  2. Preparation of common salt from sea water

  3. Wet clothes dry in sun

  4. A,B,C

Show answer
Correct Option: D
Explanation:

Evaporation is the process of a liquid converts into gaseous phase. In all these process liquid moles are evaporated into gaseous phase. Hence, option D is correct.

Wet clothes dry in sun Due to

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  1. Evaporation

  2. Condensation

  3. Sublimation

  4. Freezing

Show answer
Correct Option: A
Explanation:

Wet clothes dry in sun due to evaporation the water in wet clothes takes heat energy from sun and gets evaporated.This process involves evaporation.
Hence, option A is correct.

Drying clothes is an example of :

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  1. condensation

  2. evaporation

  3. hydration

  4. all of the above

Show answer
Correct Option: B
Explanation:

Drying clothes is an example of evaporation as in evaporation water evaporates by the heat of the sun thus helping in drying of clothes .

And hydration means the process of absorbing water .
And condensation means water that collects as droplets on a cold surface when humid air is in contact with it.

Dew formation on the leaves and grass in the winter season due to

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  1. Condensation

  2. Evaporation

  3. Sublimation

  4. Deposition

Show answer
Correct Option: A
Explanation:

Dew forms in the morning on leaves and grass because of the warmer deposits water molecules on the cool leaves.This what is called condensation.
Hence option A is correct.

Evaporation is the process of a substance in:

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  1. liquid form transitioning into the gas phase

  2. solid form transitioning into the gas phase

  3. liquid form transitioning into the solid phase

  4. None of these

Show answer
Correct Option: A
Explanation:

Evaporation of the substance is the process in which the substance transition from liquid phase to gas phase. Condensation is the process in which gas returns to liquid form. Hence, options A is correct.

The fog appeared on sun glasses when it get in contact with steam

evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

  1. Condensation

  2. Evaporation

  3. Sublimation

  4. None of the above

Show answer
Correct Option: A
Explanation:

The fog appeared on sun glasses when gets in front of hot steam due to condensation.Condensation is the process where the vapor converts into liquid.
Hence option A is correct.

Which of the following involves evaporation

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  1. drying up of mopped floor

  2. Drying of wet hair after some time

  3. drying up of water bodies like lakes and rivers

  4. A,B,C

Show answer
Correct Option: D
Explanation:

Evaporation is the process of a liquid converts into gaseous phase.In all these process liquid moles are evaporated into gaseous phase.So all the above processes involves evoporation.
Hence option D is correct.

Formation of water droplets on cold soda can while we are having soda in summer season is due to :

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  1. Condensation

  2. Evaporation

  3. Sublimation

  4. Freezing

Show answer
Correct Option: A
Explanation:

The formation of water droplets on cold soda can while having soda in summer season is due to the process of condensation.

Condensation is the process where:

evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

  1. solid substance converts into gas

  2. liquid substance converts into gas

  3. gaseous substance converts into liquid

  4. solid substance converts into liquid

Show answer
Correct Option: C
Explanation:

Condensation is the process where a gaseous substance converts into liquid.
Ex: Rainfall.


Hence option C is correct.

The mirror in the bathroom during a shower becomes foggy due to:

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  1. condensation

  2. evaporation

  3. sublimation

  4. both A and B

Show answer
Correct Option: A
Explanation:
The mirror in the bathroom during a shower becomes foggy because warmer water vapor in the air hits the cooler surface of the mirror. This phenomenon is due to condensation. Hence option A is correct.