Which of the following will be observed if the amount of substance A is doubled at the same pressure? Select one: a. The polarizability of the substance will increase. b. The amount of heat to melt and vaporize the substance will increase. c. The strength of intermolecular forces of attraction among the substances will increase. d. The boiling temperature of the substance will increase.

Q: Which occurs when water boils? A. chemical bonds are broken. B. intermolecular forces are broken. C.…

A: In water hydrogen bonds are present between the molecules.This type of bond is considered an…

Q: The vapor pressure of water is 32.6 atm at 402.4 K, and the vapor pressure of water is 66.5 atm at…

A: Given, Initial Temperature , T1= 402.4 K Initial Pressure, P1 = 32.6 atm Final Temperature , T2 =…

Q: The word latent means “hidden”, “unseen”. Which one of the following statements best explains why…

A: The energy is always absorbed during a phase transition. The energy required to melt a solid is…

Q: Using your own knowledge of intermolecular forces, predict the state of the substance below. Explain…

A: State of substance can be solid, liquid or gas. If the molecules are held together by strong forces…

Q: Mercury has a convex meniscus. Which of the following best explains this phenomenon? a. The…

A: When cohesive force is greater than adhesive force, meniscus is convex. When cohesive force is…

Q: 8. Based on intermolecular forces, which one of the following substances will have the lowest…

A: Boiling point of any species is directly proportional to the strength of inter-molecular force of…

Q: The vapor pressure of water is 13.5 atm at 436.6 K, and the vapor pressure of water is 57.3 atm at…

A: Clausius Clapeyron equation ΔH= R ln(P1/P2) / 1/T1  -  1/T2) =8.315Ln(13.5/57.3)  / 1/436.6…

Q: Heat is added to boiling water. Explain why the temperature of the boiling water does not change.…

A: Matter exists in different states. Water can exist in solid ice, liquid water and water vapors.…

Q: Select one: a. Increasing pressure at constant temperature can melt the solid. b. Increasing…

A: A graphical representation of the physical states of a compound under different conditions of…

Q: describe one property that is characteristic of : a. molecular solid b. metallic solid

A: We have to explain the properties of molecular and metallic solids.

Q: 5. The space-filling representation provided below is an example of a unit cell, which contains…

A: In primitive unit cell, the atoms are present on all the 8 corners of the cube. In body centered…

Q: 3. As the overall strength of intermolecular forces increases, how are the following physical…

A: The question is based on the concept of physical properties. we have to identify the variation of…

Q: a. Alcohol b. Sea water c. Water d. Mercury e. Dead Sea f. Acetone Among those choices, which one…

A: Intramolecular forces are the forces that hold atoms together within a molecule. Intermolecular…

Q: Which type of substance causes greater vapor pressure lowering? A. a covalent compound  B. a group…

A: Given Compound  A. a covalent compound  B. a group of nonmetals C. a metallic compound D. an ionic…

Q: The physical properties of water can be explained by:

A: Physical properties can be measured without changing the identity and composition of the substance.…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.