The temperature at which a solid and liquid phase of a substance are in equilibrium with each other. Sublimation Point Melting Point Vaporization point Boiling Point

Q: Choose the substance with the lowest boiling point:  H2S NBr3 F2 CF2H2 H2O2

A: We have to choose the substance with the lowest boiling point among the following given compounds…

Q: Type of solid=molecular, atomic, ionic force holding the solid together=dispersion, dipole,…

A: There are different type of compounds which have different type of intermolecular forces of…

Q: What would you expect to a substance melting to a liquid phase or subliming to a gas at 1 atm and…

A: Matter: It is made up of many particles or atoms. 3 different states of matter are solid, liquid and…

Q: Energy is absorbed as the phase changes to a more ordered state. O True O False

A: Given: Energy is absorbed as the phase changes to a more ordered state.

Q: In the phase diagram below, the temperature at which this substance reaches its melting point is °C,…

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Q: Which of the following statements is wrong The vapor pressure of a liquid is the partial pressure of…

A: Sublimation  A process in which solid directly converted into gases without going through liquid…

Q: Water __________ upon freezing.     sublimes     contracts     expands     increases its…

A: Water particle contract upon freezing  And viscosity also increase  And also specifuc heat decrease

Q: Which factors cause transitions between the solid and liquidstate? The liquid and gas state?

A: To define the factors that cause the transitions between (i) solid and liquid, (ii) liquid and gas.…

Q: Relate boiling point to molar heat of vaporization.

A: Given, The two terms which have to relate each other are boiling point and molar heat of…

Q: Which of the following lacks a regular three-dimensional arrangement of atoms? Multiple Choice ionic…

A: Answer  Regular three dimensional arrangement of atoms The…

Q: Match the process that eventually happens with the change in conditions according to this phase…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: What factors cause transitions between the solid and liquid state? The liquid and gas state?

A: Given transitions,            Solid and liquid state             Liquid and gas state

Q: Which of the following statements is false? A. Phase change; energy (heat) is removed or added. B.…

A: A. Phase change -Energy (heat) is removed or added - Statement is true . A phase change is a…

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: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A: the temperature versus the heat added curve is known as heating curve. from the curve we can…

Q: Provide the following physical properties of Water: Melting point Boiling point Heat of…

A: To give: Physical properties of water.

Q: Identify the most important types of interparticle forces present in the solids of each of the…

A: CaCl2 is an ionic compound , Ca+2   2Cl-1   hence interparticle forces present in solids are : -…

Q: The phase change from gas state to a liquid is called a) boiling b) sublimation Oc) vaporization d)…

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Q: Which phase change involves the absorption of heat? A. Liquid to gas B. Liquid to solid C. Gas to…

A: Phase changes always involves change in the energy of the system. For example: In conversion of…

Q: What process occurs when a solid converts to a gas? a) sublimation b) vaporization c) condensation…

A: Solid is the one of the three main states of matter. Matter is the substance that occupied space and…

Q: Explain the relationship between each term pair: Viscosity and Temperature

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Q: The energy required to melt a solid into a liquid is called - O cooling curve triple point heat of…

A: The involvement of energy at the time of phase change is an important criteria. The energy in the…

Q: Consider the phase diagram for an unknown substance provided in the questions below. What is the…

A: Answer :-  Vaporization  ---------------------------------------------------------------------------

Q: What is the name of the change of state from liquid to a solid? O Freezing Vaporization O…

A: The inter-conversion of substances from one form to other  form  is basically called phase…

Q: on 13 of 22 > Classify each phase based on whether it describes a solid, liquid, or gas. Gas Liquid…

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Q: The normal boiling point of this substance Temperature at critical point Temperature at triple point

A: The phase diagram given is,

Q: Which of these substances is most likely to exhibit liquid crystalline behavior?

A: Liquid crystal molecules are composed of rod-shaped molecules that are somewhat rigid in middle of…

Q: Which state of matter has atomic spacing that is close together and indefinite shape? liquid solid…

A: Solids: The particles in solid are closely arranged and have definite shape. Liquids: The particles…

Q: The substance sulfur dioxide has the following properties: normal melting point: 200.4 K normal…

A: Since the temperature of the initial substance is between the normal boiling point and normal…

Q: Explain the process of dynamic equilibrium. How is dynamic equilibrium related to vapor pressure?

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Q: The heat absorbed by melting a solid is known as latent heat of fusion O latent heat of solid…

A: During the change of physical state of compound , heat is absorbed or release whithoit the change in…

Q: The change from liquid state to gaseous state is referred to as The change from a gaseous to a…

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Q: Temperature What phase change will occur if the substance begins at point H and the pressure and…

A: State H is liquid state accrording to phase diagram State G is solid state according to phase…

Q: Arrange the following compounds (H2O, H2S, Br2, NaCl) in increasing Boiling Points…

A: 1. Boiling point : The minimum required temperature to change the phase of substance from liquid to…

Q: Which of these substances is most likely to exhibit liquid crystalline behavior?

A: Liquid crystal molecules are composed of rod-shaped molecules that are somewhat rigid in middle of…

Q: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A: The graph of temperature with respect to heat added to the flask is given. The graph shows the…

Q: The physical state(s) present when a substance is boiling is (are)   liquid + solid.

A: Generally, the physical state of the matter comprises the three states. These 3 states play a…

Q: The changing of a solid to a liquid is called Select one: Sublimation Melting Evaporation…

A: In solid the particles are tightly packed whereas in liquids the particles are loosely packed.…

Q: Which substance is expected to have the highest boiling point? a) CO2 b) HCl c) CH3OH d) CH4 e) BF3

A: The boiling points of the given substances are - a) CO2 = - 78.46°C b) HCl = - 85.05°C c) CH3OH =…

Q: What feature characterizes the dynamic equilibrium between a liquid and its vapor in a closed…

A: If we have dynamic equilibrium between a liquid and its vapor the rate of evaporation and…

Q: Which processes are important for determining the vapor pressure of a liquid? Select all that are…

A: States of a matter Matter can exist in three states: solid, liquid, and gaseous In solid-state…

Q: The heat required to convert a solid at its melting point to a liquid is called the heat of   a.…

A: Heat energy that is required to change the state of unit mass of a substance without changing…

Q: What describes the phase change from gas to liquid? melting vaporization condensation

A: We know that , state/phase of matter are  solid Liquid Gas By adding heat or removing heat we can…

Q: Explain what happens in the processes of vaporization and condensation?

A: To find: The explanation for the process of vaporization and condensation

Q: choose the substance expected to have highest surface tension in liquid phase: a) CH3CH2F b)…

A: Choose the substance expected to have highest surface tension in liquid phase: a) CH3CH2F b)…

Q: Time Temperature

A: The correct answers are given below.

Q: Describe the types of crystalline solids?

A: To find: The description about the types of crystalline solids.

Q: At constant pressure p1, the substance goes from solid state to gas as temperature increases…

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Q: Heat does not have to be present in all phase changes. True O False

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