NURSING EXAM QUESTIONS
PHARMACEUTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Surface tension may be defined as
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The work done per unit area in increasing the surface area of a liquid under isothermal condition
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The work done per unit area in increasing the surface area of a liquid under adiabatic condition
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The work done per unit area in increasing the surface is of a liquid under both isothermal and adiabatic conditions.
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Free surface energy per init volume
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Explanation:
Detailed explanation-1: -Hence, the correct option is (A) the work done per unit area in increasing the surface area of a liquid under isothermal conditions. Note: We also come across a term called surface energy. When the surface area increases, cooling also happens.
Detailed explanation-2: -Surface tension of a liquid is defined as the tangential force per unit length acting at right angles on an imaginary line drawn on the surface of the liquid. Its unit is Newton per Metre. Surface Tension is essentially a molecular phenomenon.
Detailed explanation-3: -Surface tension is defined as work required to extend a surface under isothermal conditions.
There is 1 question to complete.