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Which of the following is an endothermic process?
  • a)
    Dilution of sulphuric acid
  • b)
    Sublimation of dry ice
  • c)
    Condensation of water vapours
  • d)
    Respiration in human beings
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following is an endothermic process?a)Dilution of sulphur...
Endothermic Process

An endothermic process is a chemical reaction or physical change in which heat is absorbed from the surroundings. In other words, the energy is transferred from the surroundings to the system.

Sublimation of Dry Ice

Dry ice is the solid form of carbon dioxide. When dry ice is heated, it does not melt into a liquid, but instead, it undergoes sublimation, which is a process in which a solid changes directly into a gas without passing through the liquid state.

During sublimation, the energy is absorbed from the surroundings to overcome the intermolecular forces of attraction between the molecules of dry ice. As a result, the temperature of the surrounding decreases, and the process is endothermic.

Therefore, option B, sublimation of dry ice, is an endothermic process.

Other Options

Dilution of sulphuric acid is an exothermic process because it releases heat and energy into the surroundings.

Condensation of water vapours is an exothermic process because it releases heat and energy into the surroundings.

Respiration in human beings is an exothermic process because it releases energy in the form of heat and ATP.
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Which of the following is an endothermic process?a)Dilution of sulphuric acidb)Sublimation of dry icec)Condensation of water vapoursd)Respiration in human beingsCorrect answer is option 'B'. Can you explain this answer?
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