13. The enthalpy change, AH, of a process is defined as: The quantity of heat transferred in or out of a system as it undergoes a change at constant pressure. O The increase or decrease in temperature in a system. O The change in molecular disorder in a system. O The maximum amount of useful work that can be done in a system. 14. See imag

Q: lution of HI was found to have a pOH of 13.35 at 25 °C. What is the concentration of HI? a. 0.52 M…

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Q: Find the work energy, w, gained or lost by the system when a sample of gas expands from 10 L to 30 L…

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Q: For the reaction HCl(g) + NH3(g)NH4Cl(s) G° = -98.5 kJ and S° = -284.8 J/K at 272 K and 1 atm.…

A: For a spontaneous reaction, the decrease in Gibbs free energy , -∆G represents the maximum amount of…

Q: system absorbs 225 J of heat from the surroundings and delivers 645 J of work. Claculate the change…

A: First law of thermodynamics is based on conservation of energy.     Total energy of universe remain…

Q: When 1.00 L of 1.00 M Ba(NO,), solution at 25.0°C is mixed with 1.00 L of 1.00 M Na,SO, solution at…

A: Enthalpy change is defined as the amount of heat evolved or absorbed in a reaction carried out at…

Q: The surrounding absorbs 50J of heat as it does 32J of work on the system. Which among the choices is…

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Q: During a breath, the average human lung expands about 0.50L. If this expansion occcurs against an…

A: Work in thermodynamics is the amount of energy that is transferred from one system to another system…

Q: 22) The standard enthalpy of reaction, AH, CaO(s) + SO3(g) → CaSO4(s) is -401.5 kJ mol-1. Determine…

A: Ans.           ∆H°=Erxn°+∆nRT    or     Erxn° = ∆H°-∆nRT…

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Q: For the reaction 2502(g) + 02(g)2S03(g) AG° = -132.2 kJ and AS° = -187.9 J/K at 349 K and 1 atm. The…

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Q: For the reaction CO(g) + Cl2(g)–COCl2(g) AG° =-63.0 kJ and AS° = -137.3 J/K at 330 K and 1 atm. The…

A: Gibbs free energy is the greatest work a system does to its environment when the reaction is…

Q: The energy of the universe is constant. That what mentioned by the first law of ?thermodynamics,…

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Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

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Q: For the reaction 4HCI(g) + O2(g)→2H2O(g) + 2Cl2(g) AH° = -114.4 kJ and AS° = -128.9 J/K The maximum…

A: The reaction given is, Given: ΔHo = -114.4 KJ    Temperature = 311 K                       And ΔSo…

Q: 7. A 4.82 g sample of iron is heated to 84.3 °C. A 1.25 g sample of gold is heated to 95.1 °C. Both…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: Salt to He the following on SU 8. Which conditions would alw in an increase in the internal energy…

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Q: 5. (. One mole of an ideal gas expands against an external pressure of 1.0 atm from an initial state…

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Q: Explain me! Juliet was studying thermodynamics. She was doing well in understanding the lesson…

A: Thermodynamics describes the relation between physical properties of matter like heat, work,…

Q: Change A solid absorbs heat and turns to a gas. During an endothermic chemical reaction, a gas is…

A: Answer:The spontaneity of the reaction can be decided on the basis of the value of Gibbs free energy…

Q: A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 356 K.…

A: Given- Gas behaves as an ideal gas  Initial temperature =273K Final temperature =356K Change in…

Q: A gas absorbs 28.5 J of heat and then performs 15.2 J of work. the change in internal energy of the…

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Q: Given the following thermochemical equations, 4B(s) + 30,(g) → 2B,03(s) AHº= -2543.8 kJ H2 (g) + ½…

A: Given: 4Bs+3O2g→2B2O3s ∆H°=-2543.8kJH2g+12O2g→H2O ∆H°=-241.8kJB2H6s+3O2g→B2O3s+3H2Og ∆H°=-2032.9kJ…