Choose the condition that must be specified in order to liquify CO; (triple point for CO; is - 57°C and 5.2 atm). A.Pressure must be kept below 5.2 atm. B.Temperature must be kept above - 57°C. Pressure must be kept below 5.2 atm. and ‘temperature must be kept above 57°C. Pressure and temperature must be kept ‘below 5.2 atm. and - 57°C respectively. View Answer Workspace Report Discuss in Forum

Q: 1. The enthalpy of fusion for Hg is 2.29 kJ/mol. What is the energy change when 78.0g of Hg melt at…

A: Given: The enthalpy of fusion for Hg = 2.29 kJ/mol We have to calculate the energy change when 78.0g…

Q: Fill in the blanks with the appropriate word or phrase.  1. The average kinetic energy of a gas…

A: Following are the filled blanks with appropriate words

Q: Vapor Pressure (kPa) at 20°C 2.33 5.85 58.96 LIQUID Y 4. Which liquid has the strongest…

A:

Q: 22. The outer zone in the ingot is called B. O A. Chilled zone O Columnar zone OC. Central zoned

A: We are to discuss what an outer zone in ingot is know as.

Q: ln(0.72)= (delta H vap )/(62.37L mmHg/mol K)(-0.00047) Find delta H vap

A:

Q: What is the intermolecular force between sulfur tetrachloride and water. What about sulfur…

A: Intermolecular forces of attraction between Sulfur tetrachloride and water; Sulfur tetrachloride is…

Q: Which of the following pure substances has the lowest melting point? a. CSC1 b. CsF C. CSBR Od. CsĮ…

A: Melting point is defined as the temperature at which solid starts melting.It is the process at which…

Q: Nitrogen is liquified from an air sample at -200oC. This is an example of what kind of process? a.…

A: Freezing is the process of conversion of liquid into solid. Sublimation is the process of conversion…

Q: Study the following phase diagram of Substance X. pressure (atm) 28+ 14+ solid 100 liquid 200…

A: A question based on phase rule. For the given phase diagram, three follow-up questions are to be…

Q: ...elting point enthalpy of fusion temperature (°C) 80- 70- 60- 50- 40- 30- 20- 10- 0- You may also…

A: Answer:During the phase transition of a crystalline substance, temperature remains constant until…

Q: The solvent methylene chloride (CH₂Cl₂, 85 g/mol) has a vapor pressure of 0.57 atm and a Henry's law…

A: In the context of gases and their behavior in sealed containers, it's crucial to understand the…

Q: Molecular Solid: A solid material primarily held in this phase by intermolecular forces causing…

A: Metallic solid - - > The metallic solid are the solids in which the metallic particles arey held…

Q: Which of the following molecules has the higher AHvap (the amount of energy needed to change the…

A: Answer: Enthalpy of vaporization depends on the strength of intermolecular attraction forces. Higher…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.