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Concept explainers
Interpretation:
The surface energy required to change a spherical drop of water of
Concept Introduction:
A molecule inside liquid feels attraction from all directions uniformly, but surface molecules only feel force from inward direction. So, surface molecules of a liquid feel a net inward force and therefore tends to minimize their surface area to minimize the number of molecules on the liquid surface. This inward force is surface tension.
Higher the attractive force on molecules, higher will be the surface tension of liquid. The surface tension of a liquid holds the liquid droplet in spherical shape because a sphere has the lowest surface area. For a spherical drop, high surface tension in necessity.
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Answer to Problem 15.27P
The surface energy needed to change a spherical drop of water of
Explanation of Solution
The diameter of bigger sphere is
The radius of bigger sphere is calculated as follows:
The formula for surface area of sphere is as follows:
Here,
Substitute
The formula to calculate the surface energy of bigger sphere is as follows:
Substitute
The formula to determine volume of bigger sphere is as follows:
Substitute
The bigger sphere is divided into 2 smaller spheres of equal size so the volume of both smaller spheres will be same. Consider volume of smaller sphere be
Rearrange equation (4) to calculate
Substitute
Rearrange equation (3) to calculate radius of smaller sphere.
Substitute
Substitute
Substitute
So the difference in surface energy of smaller and bigger sphere is calculated as follows:
So the surface energy needed to change a spherical drop of water of
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Chapter 15 Solutions
General Chemistry
- Predict the major products of the following organic reaction: + Some important notes: A ? • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. Explanation Check Click and drag to start drawing a structure.arrow_forwardif the answer is no reaction than state that and please hand draw!arrow_forward"I have written solutions in text form, but I need experts to rewrite them in handwriting from A to Z, exactly as I have written, without any changes."arrow_forward
- Deducing the reactants of a Diels-Alder reaction vn the molecule on the right-hand side of this organic reaction be made in good yield from no more than two reactants, in one step, by moderately heating the reactants? ? Δ O If your answer is yes, then draw the reactant or reactants in the drawing area below. You can draw the reactants in any arrangement you like. • If your answer is no, check the box under the drawing area instead. Click and drag to start drawing a structure. Product can't be made in one step. Explanation Checkarrow_forwardPredict the major products of the following organic reaction: Δ ? Some important notes: • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. Explanation Check Click and drag to start drawing a structure. Larrow_forward> Can the molecule on the right-hand side of this organic reaction be made in good yield from no more than two reactants, in one step, by moderately heating the reactants? ? Δ • If your answer is yes, then draw the reactant or reactants in the drawing area below. You can draw the reactants in any arrangement you like. If your answer is no, check the box under the drawing area instead. Explanation Check Click and drag to start drawing a structure. Х © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accesarrow_forward
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