Find ΔS for the system, surroundings, and universe when 28.2 g of liquid H2O is evapourated at 100.0 oC, if the heat required is provided by a hot plate whose temperature is 329  oC. For water, ΔHvap is 40.79 kJ/mol. a. ΔSsystem? b. ΔSsurroundings? c. ΔSuniverse?

Q: The heat of melting of ice at 1 atmosphere pressure and 0°C is 1.4363 kcal/mol. The volume of ice is…

A:

Q: Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g)…

A: ★ Answer : Reaction 2  is non spontaneous. ★ Explanation :

Q: 50. For the process O2(g) → 2 O(g), AH° = +498 kJ. What would be predicted for the sign of ASrxn and…

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Q: 2.2.Predict if the following reaction is spontaneous or not. CO,6)CO(g) at 25°C 2.3. If the door of…

A: Carnot engine is a heat engine which operates in a reversible cyclic path.

Q: For each reaction, calculate AHrn, ASn, and AGxn at 25 °C and state whether or not the reaction is…

A: a. The reaction: N₂O₄(g) → 2 NO₂(g) Standard enthalpies of formation: N₂O₄(g): Hf =…

Q: Which system has the greatest entropy? (a) 1 mol of H21g2 at STP (b) 1 mol of H21g2 at 100 °C and…

A: Entropy is known as randomness or the least stability or highest energy.

Q: For each reaction, calculate ΔH °rxn, ΔS°rxn, and ΔG°rxn at 25 °C and state whether or not the…

A: Standard heat of formation of N2O4 (ΔHfo) = 9.16 KJ/mol. Standard heat of formation of NO2 (ΔHfo) =…

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Q: If a process is exothermic and not spontaneous, then what must be true?     ∆S 0   ∆H > 0   ∆H…

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Q: Consider the reaction: 2 POCl3 (g) -> 2 PCl3 (g) + O2 (g) A) Calculate DGrxn° for the reaction…

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Q: Which of these processes is spontaneous?a. the combustion of natural gasb. the extraction of iron…

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Q: SBr4 (g) → S (g) + 2 Br2 (l)         ΔGo = 77.75 kJ    ΔSo = 125.2 J/K    ΔHo = 115.4 kJ What would…

A:

Q: At 25 °C the formation of NH, (g) has a positive AS" systom. Is this reaction spontaneous or…

A: Given: ∆Ssystemo=+180 J/K T = 25oC ∆HfoN2g=0 kJ/mol∆HfoH2g=0 kJ/mol∆HfoNH3g=-45.9 kJ/mol

Q: Does

A: 1- If temperature is constant but pressure will changed then entropy is inversely proportional to…

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A: Thermodynamics is branch of chemistry in which we deal with heat of reaction.

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A: Spontaneity of a reaction can be determine from the value of ∆G of reaction.

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Q: With two dice, each numbered 1–6, there are two possible ways to roll a 3. and Thus, for the outcome…

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Q: For each reaction, calculate AHan ASn and AGan at 25 "C and state whether or not the reaction is…

A: Standard heat of formation of N2O4 (ΔHfo) = 9.16 KJ/mol. Standard heat of formation of NO2 (ΔHfo) =…

Q: 23. In a reaction, the change in entropy is given as 2.4 cal/K and the change in Gibbs free energy…

A:

Q: The graph below shows the change in Gibbs free energy for two reactions. Change in Gibbs Free Energy…

A: Given:

Q: For the following reaction: SO2 (g)_± ½ O2(g)→ SO3(g) For this reaction to be spontaneous, what must…

A:

Q: Suppose that two systems, each composed of two particles rep- resented by circles, have 20 J of…

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Q: What is the entropy when a system goes from 4 microstates to 5 microstates? 3.08 x 10-24 O -3.08 x…

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Q: Our atmosphere is composed primarily of nitrogen and oxygen, which coexist at 25 °C without reacting…

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Q: 1) Given the following balanced equations, determine which is in a more disordered state. a. H₂O(l)…

A: Given,

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A: SYSTEM: System is that part of universe which we are experimenting on or which we are considering.…

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A: These all are the terms related with chemical thermodynamics. There are many reactions which occur…

Q: Calculate the change in entropy that occurs in the system when 23.0 g of isopropyl alcohol condenses…

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Q: Is the formation of acid rain spontaneous or non-spontaneous at 50°C?

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Q: Given the particulate models here that depict Cu in solid form, Br2 in liquid form, and He in…

A: The Gibb’s equation of thermodynamic purposed a relation between ΔS, ΔH and ΔG with Temperature.…

Q: Which of the following processes is both exothermic (at 1 atm) and spontaneous? A) Sublimation of…

A: The process which is both exothermic and spontaneous is condensation of water at 99.5°C.

Q: Consider the following reaction occurring at 25C Nitrogen monoxide gas reacts with hydrogen gas to…

A: "Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: A block of copper is initially at T=500 K. As it cools to room temperature, 1000 J of heat flows out…

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Q: Which statement is INCORRECT with respect to thermodynamics? A) The sign of ΔG for a reaction is…

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Q: -Find AH, AS, and AG. Is this reaction exothermic and is it spontaneous? NO (g) + ½ O2 (g) -> NO2…

A: The given reaction is: From the given values- ΔH and ΔS can be calculated as follows: where m and…

Q: y 20. Which process is most likely nonspontaneous at 25°C and 1 atm? (A) A rock climber repels down…

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Q: Consider these two reactions: Reaction 1: 20F2(g) O2(g) + 2 F2(g) ΔΗ-49.4 k Reaction 2: N2(8) +…

A:

Q: Calculate the change in entropy that occurs in the system when 21.0 g of diethyl ether condenses…

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Q: Calculate the standard molar entropy change for the conversion of nitrogen monoxide to nitrogen…

A: 2 NO + O2 ==> 2NO2

Q: 19.) Consider the following reaction, determine the temperature at which it is spontaneous? SO3 (g)…

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Q: A simple chemical system has an entropy value of 8.07E-23 J/mol K. How many microstates does this…

A: By the relationship between entropy and microstate , we have ;  S = KB ln Ω ----------------(I)…