At 100 ° C, 1 mol of liquid water takes 19400 calories and under one atmosphere pressure, the same it turns into steam in conditions. In the change of water state; What are the values ​​of δW, δQ, ∆U and ∆H

Q: 12. For mercury, the enthalpy of vaporization is 58.51 kJ/mol and the entropy of vaporization is…

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Q: For each system listed in the first column of the table below, decide (if possible) whether the…

A: Entropy means randomness. If the randomness or the motion of molecules increases in any case then…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A: GIVEN: To Solve: Solution:

Q: (Q71) Consider the hydrogenation of ethene to form ethane that occurs according to the following…

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Q: Look up the boiling point of benzene. Then calculate the change in Gibbs Free Energy for che…

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Q: What is the entropy change (in J/K) of 85 g of steam at 100°C when it condenses to water at the same…

A: At phase transition, the entropy change is defined as the ratio of enthalpy change and temperature…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A: The first reaction is written as follows: 6Cl2(g) + 2Fe2O3(s) →4FeCl3(s) + 3O2(g) Gibbs free energy…

Q: Could I please have help understanding how to think when asked to predict the signs of ∆Gº, ∆Hº, and…

A: The reaction enthalpy ∆Ho depends on the energy absorbed or released during the course of a given…

Q: Which of the following statements best describes the entropy of water that freezes in a beaker? a.…

A: The correct option is:

Q: 1. Benzene (C6H6) boils at 80.1°C and its molar enthalpy of vaporization is AHvap=31.0 kJ/mol. a.…

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Q: The heat of vaporization AH, of diethyl ether 34.6 °C. Be sure your answer contains a unit symbol…

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Q: Would each of the following changes increase, decrease, orhave no effect on the number of…

A: Given changes, (a) increase in temperature (b) decrease in volume (c) change of state from liquid to…

Q: nickel, Ni, the heat of fusion at its normal melting point of 1453 °C is 17.6 kJ/mol. The entropy…

A: A(s) <--------> A(l)   ΔG = 0  ΔG = ΔH - TΔS 0 = ΔH - TΔS ΔS = ΔH/T ΔS(fusion) = ΔHfusion/T T…

Q: The vaporisation of a certain element at 23.0 oC has the following enthalpy and entropy values:…

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Q: For aluminum, Al, the heat of vaporization at its normal boiling point of 2467 °C is 284.1 kJ/mol.…

A: For normal boiling point , trouton give a rule,  heat of vaporisation is numerically equal to 10.6…

Q: The vaporisation of a certain element at 24.0 oC has the following enthalpy and entropy values:…

A: Given,  Hvap = 3.40 kJ mol-1     Svap = 246 J K-1 mol-1. Temperature = 24.0 °c = 297 K Now, □Stotal…

Q: Predict whether the entropy change of the system in 2 H2 (g) + O2 (g) —> 2 H2O (l) is positive or…

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Q: What is the value of Gibbs free energy when enthalpy is -22kJ/mol and entropy id -54 J/mol.K at 280…

A: Using Gibb's Helmholtz equation: ∆G = ∆H - T∆S Given data :  ∆H = -22kJ/mol  ∆S = -54Jmol-1K-1  T =…

Q: Describe the spontaneity and entropy of the processes. Sublimation of naphthalene balls as…

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Q: The normal boiling point of ethanol, C2H5OH, is 78.3 °C. Its molar enthalpy of vaporization is 38.56…

A: Molar heat of vaporisation of a substance is defined as the amount of heat absorbed by one mole of…

Q: Calculate ΔG, in kJ/mol, at 771.18 K if ΔH and ΔS are -263.17 kJ/mol and 196.77 J/(mol*K),…

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Q: CH, (g)+20,(g)→ CO,(g)+2H,O() Table 2. Standard molar Gibbs free energy change of formation at 25 °C…

A: The standard free energy change of a chemical reaction can be calculated by the standard free energy…

Q: The vaporisation of a certain element at 23.0 oC has the following enthalpy and entropy values:…

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Q: . Given the following processes, what would be the entropy change for the gases involved? a.…

A: Given that -  a. Ethanal, 5 mols, is heated from 180 (453 K) to 2200°C (2473 K)  b. 10 mols of…

Q: If the change in enthalpy is 60.2 kj/mol and the change in entropy is -4 j/mol k at 45 degrees…

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Q: For the chemical system: KOH + HBr → KBĽ¢ + H,O + 45 kJ (aq) (aq) (1) which of the following is…

A: KOH (s) + HBr (aq) ------> KBr(aq) + H2O(l) +45 kJ

Q: 2. The molar heats of fusion and vaporization of benzene are 10.9 kJ/mol and 31.0 kJ/mol,…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: 5. Sodium acetate dissolves in water according to the following equation: NAC2H3O2 (s) Nat (ag) +…

A: Given process is :  NaC2H3O2 (s) -----> Na+(aq) +C2H3O2-(aq)

Q: A small dish containing 530 g of water isplaced outside for the birds. During the night the outside…

A: A small dish containing 510 g of water is placed outside for the bird. Surroundings absorb the heat…

Q: Predict whether the entropy change of the system in each of the following is positive or negative.…

A: GIVEN:- Predict whether the entropy change of the system in each of the following is positive or…

Q: Benzene is a liquid under standard conditions. The standard enthalpy and entropy changes for the…

A: The equation of Gibbs Helmholtz is mainly used to predict any particular liquid's boiling point (T).…

Q: of the following is the entropy change of the system? B. +7.618 J/K /K C. -4.989 J/K D. +4.9 of the…

A: Given, T = 298 Mole(n) = 1.0 mol Volume (V1) = 2.0 L Final Volume (V2) = 5.0 L Using entropy…

Q: Propanol (C3H7OH) melts at -126.5 °C and boils at 97.4 °C. Assume you have 1 mol of substance. a.)…

A: Entropy is basically the randomness or movement of the molecule. It is not dependent on the path.…

Q: Consider the process below. The normal boiling point of CH3CN is 82 °C. CH;CN(g, 103 °C, 1 atm)…

A: The given process is as follows: CH3CNg, 1030C, 1atm→CH3CNl, 680C, 1atm According to the above give…

Q: I use dry ice (solid CO2 which is -78.5 ℃) in my lab to cool reactions. If I leave a chuck of dry…

A: The heat capacity of dye ice at 25.0 oC is 0.846 J/goC. The total required heat to sublimate and…

Q: The following information is given for benzene, C6H6, at 1atm: AHvap(80.1 °C) = 30.7 kJ/mol boiling…

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Q: Which of the following is likely to have the highest standard entropy in the liquid state? O…

A: Entropy is the measure randomness or disorderness of molecule

Q: The heat of vaporization AH, of acetic acid (HCH₂CO₂) is 41.0 kJ/mol. Calculate the change in…

A: Given,  The heat of vaporisation of acetic acid,  ∆Hv = 41.0 kJ/mol  Mass of acetic acid = 49 g…

Q: Consider the physical process at 1 atm pressure: Br2 (l) -->  Br2 (g)   where  ΔHo = 31.0 kJ/mol and…

A: Br2 (l) -->  Br2 (g) ΔHo = 31.0 kJ/mol = 31000 J/mol ΔS = 93.0 J mol-1 K-1

Q: In each pair, choose the system that has greater entropy and explain your choice: (a) 1 mol of…

A: Given pairs, (a) 1 mol of NaCl(s) or 1 mol of HCl(g) at 25 °C (b) 2 mol of HCl(g) or 1 mol of HCl(g)…

Q: The normal boiling point of ethanol is 78.85 °C and the molar enthalpy of vaporization, AHvap, is…

A: When a liquid change to a vapor state the entropy of the system increases. The entropy of…

Q: Calculate the change of the entropy of the system in J/K for the following phase transition:…

A: Given data -  Mass of methanol = 64.1 g  Molar mass of methanol = 32.04 gmol-1   Enthalpy of…

Q: Calculate the entropy change for the following process. H2O (s, 100 g, -10°C, 1bar) →H2O (s, 100 g,…

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Q: The boiling point of a certain pure liquid is 78.9°C and the enthalpy of vaporization is 46.4 kJ/mol…

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Q: The standard enthalpy of vaporization of an organic compound is 40.20 kJ/mol at its normal boiling…

A: Given: The standard enthalpy of vaporization of the organic compound = 40.20 kJ/mol The boiling…

Q: Consider a process in which an ideal gas changes fromstate 1 to state 2 in such a way that its…

A: In thermodynamics, various types of functions are studied; two of them are state function and path…

Q: Consider a process in which an ideal gas changes from state 1 to state 2 in such a way that its…

A: No, this is not an isothermal process. Temperature of initial state ( state 1 ) and final state (…

Q: Is this a spontaneous or nonspontaneous process?

A: Is this a spontaneous or nonspontaneous process?

Q: The standard enthalpy of vaporization of an organic compound is 35.20 kJ/mol at its normal boiling…

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Q: Propanol (C3H7OH) melts at -126.5 °C and boils at 97.4 °C. Assume you have 1 mol of substance. a.)…

A: Melting point of propanol is given as -126.5oC(146.5K) and boiling point is given as 97.4oC(370.4K)…