The question asks to identify which substance among the given options undergoes sublimation. Sublimation is the process where a substance transitions directly from the solid to the gas state, without passing through the liquid state.
Sublimation: Solid to Gas Transition
Let's analyze the properties of each option:
- Nitrogen: Nitrogen is a gas at standard temperature and pressure. It does not typically undergo sublimation.
- Iodine: Iodine is a solid at room temperature. When heated, solid iodine transitions directly into iodine vapor (gas) and then back to solid upon cooling, exhibiting sublimation.
- Sucrose: Sucrose (common sugar) melts when heated, and at higher temperatures, it decomposes rather than sublimating.
- Calcium: Calcium is a metal. It has a high melting point and boils at a very high temperature; it does not readily sublime under normal conditions.
Identifying the Sublimating Substance
Based on the analysis, Iodine is the substance that exhibits sublimation among the choices provided.
Similar Questions
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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
