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Liquid X is known to have a higher surface tension than Liquid Y.Use this fact to predict the result of each experiment in the table below, if you can.experiment predicted outcomeSmall amounts of Liquid X and Liquid Y are sprayed into the air, where they form perfect spheres with a volume of 35.0μL. The diameters of these drops are measured with a high-speed camera, and their surface areas SX and SY calculated. SX will be greater than SYSX will be less than SYSX will be equal to SYIt's impossible to predict whether SX or SY will be greater without more information.Wax-coated particles carefully put onto the surface of Liquid X or Liquid Y will stay on the surface, if the particles are small enough.The heaviest mass of particle mX and mY that will stay on each liquid's surface without sinking are measured. mX will be greater than mYmX will be less than mYmX will be equal to mYIt's impossible to predict whether mX or mY will be greater without more information.

Question

Liquid X is known to have a higher surface tension than Liquid Y.Use this fact to predict the result of each experiment in the table below, if you can.experiment predicted outcomeSmall amounts of Liquid X and Liquid Y are sprayed into the air, where they form perfect spheres with a volume of 35.0μL. The diameters of these drops are measured with a high-speed camera, and their surface areas SX and SY calculated. SX will be greater than SYSX will be less than SYSX will be equal to SYIt's impossible to predict whether SX or SY will be greater without more information.Wax-coated particles carefully put onto the surface of Liquid X or Liquid Y will stay on the surface, if the particles are small enough.The heaviest mass of particle mX and mY that will stay on each liquid's surface without sinking are measured. mX will be greater than mYmX will be less than mYmX will be equal to mYIt's impossible to predict whether mX or mY will be greater without more information.

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Solution

The predicted outcomes for the experiments would be:

  1. SX will be equal to SY: The surface area of the droplets will be determined by their volume, not their surface tension. Since both droplets have the same volume, their surface areas will be the same.

  2. mX will be greater than mY: Surface tension is the force that allows objects to float on the surface of a liquid. Since Liquid X has a higher surface tension than Liquid Y, it can support a heavier particle on its surface.

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