Why is it much easier to pour honey when it is hot than when it is cold.

Q: What is the relationship between vapor pressure at a temperature and its melting point so that…

A: When a solid heated to give gas directly without leaving any residue is called sublimation this…

Q: aphthalene has a relatively high vapor pressure for a solid (because of its volatility, naphthalene…

A: Naphthalene is a solid which has a relatively high vapor pressure. This is because of its…

Q: 1. Why does the temperature of a boiling liquid remain constant when heat is continuously being…

A: Every substance has a definite boiling point. When a liquid is heated, then at a particular…

Q: Calculate the expected boiling and freezing points. If you boil this syrup for a recipe,would you…

A: From given

Q: What is the strongest attractive force present in the pure substances below?

A: Please see the attachment.

Q: Pure naphthalene melts at 80 °C. Pure I-naphthol melts at 123°C. All mixtures of these two…

A: A question based on phase diagram that is to be accomplished.

Q: Will the solids have the same solubility in water?

A: The solubility of solids in water depends on the lattice energy. Lattice energy is defined as the…

Q: A girl bought a pet fish. Upon returning home, she put it in a bowl of recently boiled water that…

A:

Q: 1. How do the temperatures affect the change of phase of a matter? 2. What is the difference between…

A: Given,

Q: Mixtures of liquids whose boiling points are similar (separated by less than 70 °C) require…

A: Given that : We have to identify the distillation method used to separate the mixture of liquids…

Q: Explain how a process of fractional sublimation might be apllied to a mixture of two substances…

A:

Q: Why is it necessary to completely dry the Erlenmeyer flask, after removing it from the ice-bath?

A: If Erlenmeyer flask would not be completely dry =====> Some mass of water droplet added in the…

Q: If water has the highest latent heat of vaporization, why does a drop of alcohol make my hand feel…

A: latent heat of vaporization is the heat required to convert the one mole of liquid at its boiling…

Q: Which of the following statements best describe a minimum azeotrope? I. Minimum azeotrope boils at…

A:

Q: What is the eff ect of addition of impurities on  freezing and boiling points of a substance?

A: Boiling point is temperature at which vapour pressure of liquid becomes equal to atmospheric…

Q: A sample of salt water will freeze at a higher temperature than a sample of pure water. O True False

A: The freezing point of pure water depends on the surface of the solution or solvent.

Q: What are the conditions for forming a homogeneous solid solution? Explain

A: Solution Thermodynamically, an answer could be a special description of a unvaried mixture that it's…

Q: Describe how to obtain the melting point of a compound that sublimates. Why?

A: The melting point means the temperature when a solid substance melts into a liquid substance. That…

Q: What will happen when cold water with higher density mixes with warm water?

A: When a molecule is cooled, then the particles will move slowly since it's kinetic energy is low. As…

Q: How much energy is given off when 563.8 g of NaCl solidifies at its freezing point of 801C

A:

Q: Illustrate the phase diagram of acetone and explain your findings.

A: Phase diagram of any system is the diagram which describes the change in the physical state of that…

Q: Please give me an example of a real-world application of cooling curves and determining a…

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

Q: (i) Why is an increase in temperature observed on mixing chloroform and acetone?(ii) Why does sodium…

A: The energy is released during any chemical reaction when the products formed are more stable than…

Q: Considering the provided criteria, which set of compounds is ordered CORRECTLY? a.Decreasing normal…

A: Boiling point is temperature at which vapour pressure of liquid become equal to atmospheric…

Q: Cite four real-life applications of cooling curve and determination of the freezing point of a…

A: A substance  generally exists in one of the three states of matter that is solid, liquid, and vapor.…

Q: Why oils leave a translucent spot on paper even after drying, while ethanol and water do not.…

A:

Q: what is the effect of sodium chloride and soap solution on the surface tension of water? then, how…

A: Answer -  The effect of sodium chloride  on the surface tension of water - NaCl salts cause an…

Q: Adding salt to water decreases the freezing point of the water since it lowers the vapor pressure of…

A:

Q: 354 353 352 351 3 350 349 348- 347 2 346 345 344 1 343 342 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 mol…

A: Answer a)  Regions Phase description 1 Liquid phase 2 Coexisting phase 3 Vapour phase…

Q: substance melts sharply at 135°C. Is it a pure compound? Explain.

A: If any substance has range of temperature of melting point that meansthat substance have some…

Q: If the door of a refrigerator is opened in a closed room, the room gets warmer. Explain Why

A: So you need to to understand the functionality of refrigerator--> Refrigerator is like a heat…

Q: 1- What is the factor that mainly affect the boiling point? Is it proportional to boiling point…

A: 1. The boiling point of any liquid substance is mainly affected by the pressure. The boiling point…

Q: Which of the following statements best describe a minimum azeotrope? 1. Minimum azeotrope boils at…

A: Azeotrope can be defined as mixture of liquids that has a constant boiling point The boiling point…

Q: which one will have the higher value for vapor pressure when it is in the liquid phase OF2 or XeF2

A: Given : We have to tell which among the following has high vapor pressure.

Q: Compute the vapor pressure of a solution (sweetening) prepared at 30 degrees celsius. A simple…

A: From given data,  mass of solute (sugar)= 225 g mass of solvent (water )= 115 g Also,  molar mass of…

Q: Naphthalene has a relatively high vapor pressure for a solid (because of its volatility, naphthalene…

A: Sublimation is defined as the conversion of solid to vapor directly. Sublimation temperature of…

Q: How many grams of ice at -15.0degrees celsius must be added to 50.0 mL of water at 80degrees celsius…

A: We know that the system at higher temperature loses heat and the system which is at lower…

Q: What is the heat energy required to change 10 grams of liquid water at 0ºC to 100ºC?

A: Given,  Mass of liquid water= 10 grams Initial temperature= T1= 0 °C Final temperature = T2 = 100 °C…

Q: Why is cold water circulated through the condenser from the bottom rather than from the top?

A: Condensor is use in distillation . The different types of condensor is used in different types of…

Q: what is london dispersion force and what are some examples of it?

A: London dispersion forces are the intermolecular forces exist in all molecules regardless of…

Q: plain in 4-5 sentences) Which sample has the lowest vapor pressure? Why?

A: The colligative properties are the properties of substance which depend upon amount of solute added.…

Q: Suppose that the amount of heat removed when 15.6 kg of water freezes at 0.0 °C were removed from…

A: Given :   To find :

Q: Of all the properties of water, what is the most important one which makes it a unique substance…

A: Water is an essential component of our lives. Water is considered to be the universal solvent.

Q: he boiling point of 500.0L of water was determined to be 100.0C. Ana has decided to increase the…

A: Given that:  Initial temperature (T1) = 100˚C = 373 K   Final temperature (T2) = 101˚C = 374 K…

Q: Illustrate the phase diagram of ethyl alcohol and explain your findings.

A: Ethanol is a liquid at standard conditions. However, at low temperature and/or very high pressures…

Q: Why does the vapor pressure of a liquid decreases as the strength of its intermolecular forces…

A: The vapor pressure is defined as the pressure a gas exerts when the gas is in equilibrium with the…

Q: What is formed when gas is enclosed in a chamber then liquified under very high pressure? * What…

A: Answer-1 When a gas is liquefied in a closed chamber under very high pressure, particles will come…

Q: The pure liquid with the lowervapor pressure at room temperature has the ______ boiling point.

A: Vapor pressure :- The pressure exerted by the vapour molecules on the surface of a liquid when both…

Q: You are required to illustrate the different phase changes with sugar and water.

A: Phase changes It is the process in which matter changes its state from one phase to other phase. Eg…