Tag: law of constant proportion - i

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

In which of the following processes evaporation involves

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Drying clothes is an example of :

  1. condensation

  2. evaporation

  3. hydration

  4. all of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

Evaporation is the process of a substance in:

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. Condensation

  2. Evaporation

  3. Sublimation

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Which of the following involves evaporation

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

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

  1. condensation

  2. evaporation

  3. sublimation

  4. both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
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.