Answer to Question #71410 in Inorganic Chemistry for Runa begum

Question #71410
How does the temperature effect surface tension and viscosity
Expert's answer
Surface tension and viscosity both are due to intermolecular forces. As the temperature increases the kinetic energy of molecule increases this leads to the decrease in intermolecular forces and therefore decrease in surface tension and viscosity. So we can say that temperature inversely affect the surface tension and viscosity. It is based on fact that particles in liquid gain energy from heat by rising temperatures and convert the energy into kinetic energy. Since the particles have more kinetic energy, they move more rapidly, which weakens the intermolecular force attractions in liquids. Also, because of the input of external energy, chemical bonds in liquids are broken; therefore, it is easier for liquid particles to move.

Answer: temperature inversely affect the surface tension and viscosity

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