2. Which of the following is a polar molecule? a. Alcohol b. Acetone c. Water 3. Intermolecular forces are force a. Within molecules c. Pushing molecules apart b. Between molecules d. Of Attraction between the protons and electrons 4. A water molecule has bonds with an unequal charge distribution. Which of the following categories of bonds does a water molecule have? a. Metallic b. lonicc. Non-polar d. Polar 5. If liquid A is more polar than liquid B, you might expect a. Liquid A to evaporate faster than liquid B. b. Liquid A to evaporate more slowly than liquid B. c. Liquid A and liquid B to evaporate at the same rate. 6. Which of the following property is the tendency of a liquid to rise in narrow tubes or be drawn into small openings? a. Capillary action b. Viscosity c. Surface tension d. Adhesion 7. When the cohesive forces between the liquid molecules are greater than the adhesive forces between the liquid and the walls of the container, the surface of the liquid is convex. Which of the following situation displays this condition? a. Distilled water in a silver vessel b. Water in a glass container • c. Mercury in a container 8. Given the molecular structure of water and glycerol, what is the reason why glycerol has a higher viscosity than water? a. Glycerol has unsymmetrical molecular structure. b. The larger number of -OH groups allow glycerol to form more H bonds c. Glycerol has a longer chain 9 Al the substances in the list are hydrocarbons and nonpolar. Which of the following hydrocarbon has the greatest viscosity? c. Octane b. Heptane d. Decane a. Нехаne 10. The following condition displays surface tension EXCEPT for a. Water strider briskly walking in the water. b. Drops of liquid on a coin. c. Floating paper on water d. Colored water rising in glass tubes.
Kinetic Theory of Gas
The Kinetic Theory of gases is a classical model of gases, according to which gases are composed of molecules/particles that are in random motion. While undergoing this random motion, kinetic energy in molecules can assume random velocity across all directions. It also says that the constituent particles/molecules undergo elastic collision, which means that the total kinetic energy remains constant before and after the collision. The average kinetic energy of the particles also determines the pressure of the gas.
P-V Diagram
A P-V diagram is a very important tool of the branch of physics known as thermodynamics, which is used to analyze the working and hence the efficiency of thermodynamic engines. As the name suggests, it is used to measure the changes in pressure (P) and volume (V) corresponding to the thermodynamic system under study. The P-V diagram is used as an indicator diagram to control the given thermodynamic system.
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