1. How many triple points are there? 2. What is the most stable form of sulphur under normal conditions? 3. Describe what happens when sulphur at 1 atm is heated from 80 decrees Celsius to 200 decrees Celsius.

Q: consider the equilibrium system described by the chemical reaction below. calculate the value of Qc…

A: We will calculate concentration of each and then find Qc .

Q: The enthalpy of vaporization (∆H°vap) of water is 44.0 kJ/mol. If the equilibrium constant for water…

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Q: In which one of the following processes is the system endothermic? A) A process in which the air…

A: Endothermic processes are those processes in which there is gain of energy in the process. Hence any…

Q: A sample of N204(g) is placed in an empty cylinder at a certain temperature. It is allowed to…

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Q: For the vaporization of compound X, the following data was obtained P in torr Tin K 298.15 323.15…

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Q: A reversible process is one that: I. It is spontaneous in both directions. ii. It happens without…

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Q: A mixture of HI, H2, and 1; in a closed container at 448 C has these initial partial pressures: H:…

A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical…

Q: Enzymes (i.e., biological catalysts) are said to work by the "lock and key" mechanism, where the…

A: The enzyme work is to increase or speed up the chemical reaction.

Q: Write the equation representing the equilibrium between liquid water and water vapor. Express your…

A: Given:   Concept: Vapor pressure of a liquid in terms of an equilibrium. We have to write the…

Q: 6. How do you calculate Gibbs and Helmholtz free energy changes for processes done on ideal gases…

A: As mentioned, Q6 needs to be answered.   We need to state the expressions for Helmholtz (A) and…

Q: The following gas phase system is at equilibrium: CCL(g) + CH4(g)2 CH2Cl½(g) The pressure of each…

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Q: rachloride reacts at high temperature chlorine. 2(g)-> COCI2(g) + Cl2(g), Ke = 4.4 or the reaction…

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Q: 1-) An ice cube and a stone are put in two different glasses of coke. If we know that temperatures…

A: To do so we have to consider the mass of the ice cube,stone and the coke and glass . And their…

Q: Using standard the thermodynamic properties shown below estimate the normal boiling point of carbon…

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Q: The following gas phase system is at equilibrium: CCl,(g) + CH4(g)22 CH,Cl2(g) The pressure of each…

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Q: 7. When is Gibbs-Helmholtz equation useful? What can we calculate with it?

A: Since you asked specific question so as per Q&A guidelines of portal I solved question number 7…

Q: 8. Consider the equilibrium below. (CF3)2CO (g) + H₂O (g) (CF3)2C(OH)2 (g) K = 1.25 x 10-³ Choose…

A: The value of equilibrium constant, K is a measure of the extent of the equation.

Q: 14. Explain condensation and dynamic equilibrium. 16. 17. Explain why a steam burn from gaseous…

A: Condensation equilibrium- condensation rate will continue to increase until it matches the…

Q: → NOCI(g), given the 7. Determine Kc at 298 K for the reaction 2 N2(g)+ ½ O2(g) + ½ Cl2(g) following…

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Q: PCl5 dissociates according to the equation: PCl5(g) →→ PCl3(g) + Cl2(g). If half of the total number…

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Q: Determine the equilibrium vapor pressure of germanium metal at 593.0 C. The standard enthalpy of…

A: An equation that has been used to calculate the heat of vaporization if two different vapour…

Q: if a sample of aluminum at 50oC is added to 30.0 mL of water at 22oC, and at a equilibrium the…

A: Consider the given information is as follows; Aluminum: Mass of aluminum = ?…

Q: water in the air (at equilibrium) will decreased the vapor pressure of water at that temperature c.…

A: Here some water is put on an open stove at initial temperature.  In that case evaporation and…

Q: Consider a mixture of 75.00 g water at room temperature 23.0 0C and 25.0 g water at 95.0 0C.…

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Q: 5. s In a closed container at 1900 K nitrogen reacts with oxygen to yield NO: N2 (g) + 02 (g) 2NO…

A: Ionic compounds dissociate in ions. In an aqueous state ionic compounds separate in equilibrium. The…

Q: Which of the following equilibria would not be affected by pressure changes? CO(g) + H₂O(g) = H2(g)…

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Q: Phosphoryl chloride, POCI3(g), is used in the manufacturing of flame retardants. It is manufactured…

A: Given: At 298 K, the equilibrium concentration of POCl3 was 0.68 mol/L, the concentration of NO was…

Q: The system water (l) + energy > vapor (g) is in equilibrium at 20 degrees Celsius in a closed…

A: According to  Le Chatelier's principle,  by changing  the equilibrium temperature,  concentration,…

Q: Consider freezing a 20 cm x 20 cm x 20 cm cube of water. Calculate AH, AU, q, and w for the process.…

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Q: The normal boiling point of rhothanol is 70 °C. Given that the vapor pressure of rhothanol is 68.6…

A: Given,The normal boiling point of rhothanol = 70 0CThe vapor pressure of rhothanol at 16.8 0C is…

Q: What is the definition for standard state conditions? O 298 K (25 °C) Exactly 1 M concentration for…

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Q: Which thermodynamic property is the best measure of the molecular activity of a substance?…

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Q: The equilibrium constant for the reaction 2NO(g)+O2 (g)=2NO2(g) was measured at various…

A: We will first write van't hoff equation, then using slope we will calculate ∆H of reaction.

Q: 24 02 F5 DD MacBook Air 9 NOTIS NO Click Save and Submit to save and submit. Click Save All Answers…

A: Immiscible liquid s are those liquids which do not mix in to each other. For example oil and water.

Q: Solubility of PbCl2 in water is 0.0150 g/L at 25 oC. Determine standard free energy change for the…

A: The solubility of PbCl2 in g/L is given = 0.015 g/L Since solubility in g/L = molar solubility X…

Q: 4. The second law of thermodynamics states that A. the total energy change of the universe is always…

A: 4. The second law of thermodynamics states that:

Q: Consider the experimental data observed for the reaction: A(aq) + B(aq) → C(aq). Calculate the rate…

A: We are having three set of trials , we have to calculate the rate constant from the given trials.…

Q: . The entropy change for a reaction is zero.  If the delta H is -10.0 kJ/mol, calculate Keq using…

A: Given that,ΔSo = 0ΔHo = - 10 kJ/molKeq = ?         at T = 100oC = 100+273.15 = 373.15 KR =…

Q: Which of the following equilibria would not be affected by a pressure change? O N2 (g) + 3 H2 (g) =2…

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Q: how does the equilibrium exist between the phases of a substance?

A: Equilibrium exist between solid phase and liquid phase of a substance at its freezing point.…

Q: Which of the following species will have the greatest magnitude of change in Gibbs free energy due…

A: The Gibbs free energy is the energy that is present in the system and can be tapped for doing work…

Q: Determine the vapor pressure for a solution at 45°C for a solution that contained 25.0 g acetone and…

A: Given: The mass of acetone = 25.0 g The mass of benzene = 75.0 g The vapor pressure of pure benzene…

Q: For the reaction 2S02(g) + O2(g)–2SO3(g) AH° = -197.8 kJ and ASº = -187.9 J/K The equilibrium…

A: Given: ∆Ho = -197.8 kJ = -197.8×103 J (Since 1 kJ = 103 J) ∆So = -187.9 J/K Temperature (T) = 271.0…

Q: When a thermodynamics process occurs and heat is absorbed by the system, this process is described…

A: The answer of the above question is given in step 2

Q: If the number of gas molecules within a system increases during a chemical reaction (constant volume…

A: a. The system will increase in entropy because there are greater possible configurations.

Q: Consider the following system at equilibrium where AH° =-87.9 kJ, and K. = 83.3 , at 500 K: %3D PCI3…

A: The reaction given is, => PCl3 (g) + Cl2 (g) -------> PCl5 (g) Given : ΔHo = -87.9 KJ and Kc =…

Q: Calculate the equilibrium temperature (in K, to the nearest whole number) for the illustrated closed…

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Q: ) For the phase change Br2(1) → Br2 (g), AH°= +31.0 kJ/mol and AS°= +92.9 J/mol.K. Assuming that AH°…

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