Using the image below, what phase change would occur moving from region C to region A? Moving from region B to C would be what phase change? A B unit?. unit?

Q: A phase is a physical property of which describes the distance of molecules of matter. Phase also…

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Q: Which of the following physical processes are exothermicfor water—freezing, boiling, condensing,…

A: Those chemical process which involves absorption of heat are named as endothermic process. However,…

Q: Determine what phase changesoccur between solids and liquids.

A: Phase:  A homogeneous state where no visible boundary is separating the different states of matter…

Q: The energy needed to boil the water comes from where?

A: Water exists into three phases. These are ice, liquid water and vapors. To change one phase into…

Q: d 10 The processes of melting and evaporation involve changes in the of a substance.

A: Melting is the change to solid to liquid at its melting point.  Evaporation is the change of liquid…

Q: What is the name of the phase change that occurs when ice left at roomtemperature changes to liquid…

A: Ice is the solid form of H2O. Water is the liquid form of H2O.

Q: In the picture above, solid iodine is undergoing as it is heated and the iodine vapor is undergoing…

A: What is sublimation?A solid changing to a gas without passing through a liquid phase. Solidification…

Q: How much heat is required to change 10grams of ice at -10 degrees Celcius to Water at 20 degrees…

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Q: The phase diagram of water is shown. a. Draw a broken line to show the sublimation of a sample ice.

A: Phase diagram: It is a representation of the physical state of a substance in different conditions…

Q: A phase is a physical property of which describes the distance of molecules of matter. Phase also…

A: Given : We have to tell which statement is true.

Q: On the diagram below label regions in which only liquid, only gas and both these phase coexists.

A: In the diagram region A => only liquid

Q: How do we measure the volume of unshaped solids? Please explain.

A: The method for determining the volume of a solid depends on its shape.   Regular Geometric Shapes:…

Q: Assuming that no heat is lost to the surroundings, what is the temperature of the entire water…

A: Given thatMass of ice = 24.0 gInitial temperature of ice = 0.00oCMass of water = 600.0 g Initial…

Q: What is represented by B on the phase diagram? A) solid B) liquid A C) gas D) cannot determine…

A: Matter exists in three phases that is solid, liquid and gas. A substance keep changing its state…

Q: Single term for liquids and solids phase. The distances of particles in solids  and liquids are more…

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Q: The temperature at which the pressure of the vapor on top of a liquid is equal to the external…

A: In the given question, correct option needs to be determined.

Q: Is the boiling point of a liquid higher, lower, or the same at a higher altitude? Explain your…

A: Boiling point of liquid = the temperature at which vapor pressure of liquid become equal to…

Q: Differentiate Crystalline from Amorphous Solids using the illustration

A: The crystalline solid and amorphous solid has to be differentiated from illustration. The given…

Q: , a solid can coexist with its liquid and vapor phase

A: The temperature at which the vapor pressure of the liquid becomes equal to the external pressure is…

Q: Potassium chloride forms a solid made up of a highly organized set of positive and negative…

A: Potassium chloride (KCl) is an ionic salt composed of Potassium and chlorine(an ionic bond between K…

Q: How can you use the movement of molecules to determine when a phase change has occurred?

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Q: (a) What phase change is represented by the “heat of fusion”of a substance? (b) Is the heat of…

A: a) Since fusion is the process where solid is converted into the liquid  hence the phase change…

Q: A 100.0-mL sample of water is heated to its boiling point. How much heat (in kJ) is required to…

A: Density of water = 1.00 g/mL Volume of water = 100 mL Heat of vaporization of water = 40.7 kJ/mol…

Q: When a liquid is freezing,  a. its temperature decreases constantly b. the kinetic energy of its…

A: Given,                      Four statement is given related to freezing of a liquid      Required,…

Q: ?A definition of viscosity is

A: Viscosity is the measure of resistance of the movement of fluids. Fluids include liquids and gases.…

Q: Based on the picture: a. Which object will be heated slower? Why? b. Which will release heat…

A: In the given picture, the given compound are water and soil. a) The object that will be heated…

Q: Explain and compare the trends in the graph for change in temperature on evaporation for these…

A: A question based on properties of liquids that is to be accomplished.

Q: One of these liquids is the major component in antifreeze in automobile engines. Which liquid would…

A: Hydrogen bond :-  The weak electrostatic attraction between partially negatively charged hydrogen…

Q: why ice has less density than water?

A: The structure of water and ice can be shown in below

Q: Use the observation in the first column to answer the question in the secc observation question At…

A: The enthalpy of vaporization is also known as the heat of evaporation or the heat of vaporization.…

Q: What property of a substance allows it to be separated from other solids using sublimation?

A: Introduction-

Q: What is the dispersion force?

A: Atoms are combined to form molecules and it is boned by chemical bonds. There are different types o…

Q: Use the observation in the first column to answer the question in the second column. observation…

A: Vapor pressure is the pressure exerted by the vapor above the liquid on that liquid. Boling point is…

Q: 16. Steam at 100°C passing through a radiator condenses to water and releases heat. If 1500 kcal of…

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Q: 1. How are the structures and properties of solid related?

A: There are four phases of matter-  1) solid , 2) Liquid , 3) Gas, 4) plasma The properties of the all…

Q: How much heat is released when 25.0 grams of water at 25.8 degrees C changes to ice at -14.5 degrees…

A: We determine the heat evolved in a temperature change by the formula= ∆H = m x s x ∆T where m is…

Q: How do solids and liquids behave differently?

A: Solid and liquid are two different states of a matter

Q: 3. How much energy would be needed to vaporize 2.8 g of water?

A: nwater = mass/ molar mass = 2.8/18 = 0.155 mol

Q: Are the melting temperature and freezing temperature the same for a pure substance? Why is that?

A: Melting point is the temperature at which solid substance start to convert into liquid. Example:…

Q: What type of process is vaporization, an endothermic or exothermic process?

A: The process of conversion of liquid state into the vapor state is known as vaporization. The…

Q: +. the The addition of KBr to water causes the vapor pressure to I Select] boiling point to [Select]…

A: The compounds which gets vaporize easily are termed as volatile. The volatility of compounds…

Q: Which phase change involves the absorption of heat?

A: A phase change is occured when a matter changes from one state to another state. The possible states…

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

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

Q: heats of fusion and heats of vaporization?

A: Option A is correct.

Q: As a substance is subjected to pressure and/or temperature changes, it may undergo condensation,…

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