What will be the effect of surface area on the evaporation process?
Evaporation increases with increase in surface area.
Evaporation is the process where liquid molecules escape into the gas phase from the surface of a liquid. The rate of evaporation depends on various factors, and surface area is a significant one. When the surface area increases, more liquid molecules are exposed to the air. This exposure allows more molecules to escape into the atmosphere as vapor, thereby increasing the evaporation rate. This phenomenon can be observed by comparing a shallow dish of water to a narrow glass of water; the larger surface area of the shallow dish results in faster evaporation. Therefore, the correct explanation is: Evaporation increases with increase in surface area.
Important Questions from States of Matter
A liquid is heated up to a certain temperature. Which one of the following situation would correspond to the boiling of the liquid?
Which one among the following oxides has the highest melting point?
Equal volume of all gases, when measured at the same temperature and pressure, contain an equal number of particles. Who proposed the above law?
Match List I with List II and select the correct answer using the code given below the Lists:
Code:List I (Noble gas)
List II (Use)
A. Argon
1. In lights for advertising display
B. Neon
2. Airport landing lights and in light houses
C. Krypton
3. Light in photographer’s flash gun
D. Xenon
4. In tungsten filament to last
Match List-I with List-II and select the correct answer using the code given below the Lists:
List I
(Process)
List II
(Type of change)
A. Heating of camphor
1. Chemical
B. Cooling of water vapor up to room temperature
2. Evaporation
C. Cooking an egg
3. Condensation
D. Formation of water vapor at room temperature.
4. Sublimation
