1. _____________________is the process by which a solid changes directly to the gaseous state without forming a liquid. Group of answer choices A. sublimation B. melting C. freezing D. boiling

Q: How much energy would it take to cool 36.0g of water from 62.0℃ to ice at -2.00℃? Include a sketch…

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Q: Why does warm water have a more rapid rate of evaporation than cold water? A. It has a higher…

A: Introduction: When the surface of a liquid is heated, the surface liquid molecule gets energy and…

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

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

Q: For the heating curve shown below, select all the processes that occur as you move from point A to…

A: The physical state of a matter depends on the temperature and the pressure. As we heat a solid, the…

Q: The melting points for three substances are shown below. Explain the trend using your knowledge of…

A: We will write the required information

Q: Solid substances may undergo: A. Deposition  B. Sublimation a. Only A is correct b. Only B is…

A: There are three phases of matter. The phase of matter can be interchanged by changing the…

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 gas molecules (vapor of liquid) above the liquid…

Q: The changing of solid directly to vapor without passing through the liquid state is called: a…

A: Change of solid state directly to vapor state without undergoing liquid state is sublimation. Hence…

Q: Which of the following is not attributed to boiling? Select one:   a. Rapid process   b.…

A: Which of the following is not attributed to boiling?

Q: Question 9.What is the name of the phase change between a liquid to a solid?  a melting  b…

A: To name the phase change when a liquid is converted to a solid.

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: 73 E. 67 D solid liquid 5.1 A. gas C 1.0 -78 -56 25 31 Temperature (°C) The substance at T=-78 °C…

A: Melting point is the temperature at which a substance changes its state from solid to liquid. At…

Q: Refer to the heating curve below generated from heating a solid sample. Assume that all shown…

A: Kinetic energy is a form of energy that an object or a particle has by reason of its motion. It…

Q: Potassium metal has a melting point of 63.65 °C and a boiling point of 774.0 °C. The following…

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Q: Match each letter on the phase diagram with the appropriate label: PE B. C A F G. Temperature ("C)…

A: The phase diagram is a temperature pressure graph of a matter which gives the phase or state of the…

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

A: Answer:- This question is answered by using the heat curve of the solid which gives information…

Q: Section A the solid is warming but also not melting. Section B is Melting. Section C the Liquid is…

A: Answer : From temperature, -5oC to 5 oC, solid states gets heated ( part a) from temperature 5 oC (…

Q: Answer the following questions for the heating curve of a substance,  given above.  a) Melting…

A: The solution is given below -

Q: Complete the table below based on the attached figure (heating curve). Region State(s) present Is…

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Q: What is the process when a gas converts to a liquid? a) sublimation b) condensation c) evaporation…

A: the process when a gas converts to a liquid is condensation

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

A: The correct answer is given below

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: Understanding the connection between vapour pressure, boiling point, and enthalpy of vaporisation.

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Q: How much heat is needed to melt 3kg of ice?

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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: at is the boiling point of the substance? °C ch letter represents heating of the solid? ch letter…

A: From the given heating curve,  6. 40 °c 7. 70 °c 8. A  9. E

Q: A 1.5 kg sample of ice is kept in a freezer at added to the sample. If there is no loss of heat to…

A: According to the first law of the thermodynamics, energy is always conserved, that is energy is…

Q: alculate the amount of heat needed to melt 44.8 g of solid ethanol (CH,CH,OH) and bring it to a…

A: Solution-First we need to heat of fusion of ethanol-The enthalpy needed of the solid its…

Q: Draw the missing section of this heating curve on the graph and label the phase that best fits.…

A: The diagram which shows the physical state of the substance at different temperature and pressure…

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

A: Given:  Temperature vs Heat supplied graph for Substance X.

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

A:

Q: Sulfur dioxide at 200°C and 0.01 atmosphere is compressed at constant temperature to a pressure of…

A: Phase diagram: A graphical representation of a substance under different condition of pressure and…

Q: Calculate the normal boiling point of the liquid in units of °C.

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

A: Given the enthalpy of vaporization of substance C is higher than that of substance D.  Given…

Q: A phase change from a solid to a liquid is called? a. Condensation b. Freezing c. Melting d. Boiling

A: Different processes of phase change:

Q: Which state(s) of matter are compressible? Which state(s) of matter are not compressible? Explain.

A: There are three states of matter 1. Solid State 2. Liquid State 3. Gaseous State

Q: Graph the data for the last time point at 75 minutes, and label each lines with the type of crystal

A: Solution: So from the given graph, On x-axis : diffusion time and on Y axis: Distance is plotted. So…

Q: What happens if you increase the rate at which you heat a sample of boiling water? or what happens…

A: As we increase the rate of boiling the water rate of vaporization increase but temperature didn't…

Q: At a constant pressure of 10.0 atm, solid is gradually heated from -80°C to 20°C. Which of the…

A: Option b is correct

Q: solid into vapor

A: A phase transition is defined as a change in state from one phase to another phase.

Q: how much heat will it take to raise temperature of 10g of ice from -30c to -20c

A: This problem can be solved by using the equation :…

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

A: In this equation, we want to identify which process corresponding to changing state from solid to…

Q: Intermolecular Forces: Phase Changes & Properties Objectives: 1. Interpret the heating curve of…

A: A question based on intermolecular forces that is to be accomplished.

Q: 6. What do heating and cooling curves show about a given substance? A. Chemical change B. Energy…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: Classify the following phase changes as processes that require the input of energy, or as processes…

A: The processes given are Vaporizing, Condensing, Deposition, Subliming, Melting and Freezing.

Q: The boiling point of H2 is -252.9 degrees celcesus will H2 be a liquid or a gas at -254 degrees…

A: At the lower temperature of boiling point, compound will be in a liquid state.

Q: Use the diagram to anwer the questions below. 1 atm B A D 0.006 atm - 25 0.01 25 100 T Match the…

A: In any phase diagram, 1) The region between the y axis and curve is the solid phase region 2) The…

Q: This substance has attractive forces of dipole-dipole, dispersion forces and hydrogen bonding a.…

A: In case of sugar known  hydrogen bonds, form between positively charged hydrogen atoms and…