What is the entropy change (in J/K) of 85 g of steam at 100°C when it condenses to water at the same temperature? א/נ

Q: The enthalpy of vaporization of methanol (CH30H) is 35.3 kJ/mol at the boiling point of 64.2 °C.…

A: formuls for this is: entropy change = enthalapy of vapourisation/Boilling temp.

Q: A chemical reaction has a enthalpy change of 171.8kJ and change in entropy of 788.3 J/K. what is the…

A: For spontaneous reaction ∆G<0 , For non-spontaneous reaction ∆G>0 Where ∆G is change in Gibbs…

Q: Predict whether the entropy change of the system in N2 (g, 10 atm) —> N2 (g, 1atm) is positive or…

A: The entropy of a substance increases with its molecular weight and complexity and with temperature.…

Q: Which of the following are spontaneous processes? 1. Ice melting at 1atm and 298 K (assume only ice…

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Q: For water, which phase has the largest entropy? O ce-LDA, H2O(s, amorphous) O Gas, H2O(g) O Ice-one,…

A: The given forms of water: Ice-LDA, H2O(s, amorphous)Gas, H2O(g)Ice-one, H2O (s, crystalline)Liquid,…

Q: What is the entropy change when 307 J of energy is reversibly transferred to a sample of water at…

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Q: Does the entropy of a star increase or decrease as it radiates? Does the entropy of the space into…

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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: 3. Consider the dissolution of NH,NO, in a chemical cold pack a. Is the process spontaneous? b. Is…

A: Those reaction in which energy is absorbed are known as the endothermic reactions while the…

Q: What is the change in entropy when 0.125 mol of potassium freezes at 67.2°C (Hfus = 2.39 kJ/mol)?

A: Freezing point, standard enthalpy of fusion and standard entropy can be related by the equation…

Q: er antimony, Sb, the heat of fusion at its normal melting point of 631 °C is 19.6 kJ/mol. ne entropy…

A: Question is based on the concept of chemical thermodynamics. enthalpy of fusion is defined as the…

Q: How much heat is removed from the condensation of water at 25 C? Given the standard entropy of the…

A: A numerical problem based on chemical thermodynamics that is to be accomplished.

Q: Which of the following is an example of an increase in entropy I. An old barn falls down after fifty…

A: Entropy is the measurement of randomness.

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 change in entropy when 0.200 mol of potassium freezes at 63.7°C (H(fus)=2.39 kJ/mol)?

A: Entropy is a state function and it gives a measure of randomness in a system.Change in entropy is…

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: Does

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

Q: Is it possible for an ice to have a higher entropy than water? Why?

A: Entropy is the measure of the randomness of the system. The more disordered the system more will be…

Q: Increase or decrease in entropy? a. 2NH3 (g)  N2 (g) + 3H2 (g) b. making dry ice from CO2 gas c.…

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Q: Explain the reason that the conversion of liquid water to gaseous water has a positive change in…

A: Given statement is :  Explain the reason that the conversion of liquid water to gaseous water has…

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: 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: When an instant hot pack is activated, aqueous sodium acetate crystallizes to form a solid and heat…

A: Given, At the point when a moment hot pack is enacted, aqueous sodium acetate derivation solidifies…

Q: What is the increase in entropy of 1.00 kg of ice originally at 0 oC that is melted to form water a…

A: Change in entropy is given by: ∆S=∆qT∆S=m×LfT

Q: For magnesium, Mg., the heat of fusion at its normal melting point of 649 °C is 9.0 kJ/mol. The…

A: When a solid melts to the liquid state its entropy increases. The entropy of fusion of the solid is…

Q: When the temperature is increased by 1K, which form is thermodynamically more stable?

A: Entropy is defined as the degree of randomness present in the molecules of any substance. It is a…

Q: Suppose 20 g of ice at 0 °C is added to 300 g of water at 60 °C . What is the total change in…

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Q: Why does the entropy of halogens at room temperature increases in the following order I2 <Br < Clz.

A: Entropy:  It is the thermodynamic property which measure molecular randomness or disorderness of a…

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: sketch how the entropy of water changes as it is heated from -50 °C to 110 °C at sea level. Show the…

A: The entropy changes with the temperatures are shown in the figure below:

Q: Which of the following statements must be true for the entropy of a pure solid to be zero? I. The…

A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…

Q: What is the vapor pressure, in mmHg, of ethanol at 52.1 °C? What is the entropy of vaporization at…

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

A: The change in entropy of copper when converted to a gas :Given:S° for Cu(s) = 33.2 J/(mol•K)S° for…

Q: When a 8.00 g8.00 g sample of RbBrRbBr is dissolved in water in a calorimeter that has a total heat…

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Q: When a liquid freezes, its entropy increases: true or false?

A: Entropy is the measure of randomness or disorder among particles of a given system. A liquid freezes…

Q: Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3HO) freezes at…

A: For this we have to use the formula: △S=△HfusionTWhere;△S= Change in entropy△Hfusion= Std. enthalpy…

Q: Which has lower entropy? CO2(g) or CH4(g)?

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Q: What is the entropy change when 1.20 moles of CCl₂F₂ condenses at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Number of moles = 1.20 moles  Temperature = 25°C  ∆Hvap at 25°C  = 17.2 KJ/mol  ∆S of condensation…

Q: 5-gibb For benzene, CH6, the heat of vaporization at its normal boiling point of 80 °C is 30.7…

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Q: Predict whether the entropy change of the system in NH4Cl (s) —> NH3(g) + HCl (g) is positive or…

A: Entropy is the randomness of molecules. Entropy change is the difference in number of gaseous…

Q: How much heat is removed from the condensation of water at 25°C? Given the standard entropy of the…

A: In this question we need to find out latent heat of vaporization. Let us solve this step by step.

Q: 8.35 Without performing any calculations, predict whether there is an increase or a decrease in…

A: Entropy is a measure of the molecular disorder or randomness of a system. We can easily predict a…

Q: When a 6.00 g6.00 g sample of KClKCl is dissolved in water in a calorimeter that has a total heat…

A: Given, mass of KCl = 6.0 g Total heat capacity = 4.47 kJ/K ∆T =0.310 K Molar heat of solution is…

Q: Solve this problem

A: Given, Standard entropies: SoHgO = 70.29 J mol-1 K-1SoHg = 76.02 J mol-1 K-1SoO2 = 205.14 J mol-1…

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

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Q: Combustion of glucose (CH0 is the main source of energy for animal cells: CH,0) + 60/g) → 6C0,(g) +…

A: The given data contains, ∆Greaction =-2872 kJ.Number of aminoacids=84

Q: Water freezes spontaneously at -5°C and 1atm. Describe how a spontaneous process can result in a…

A: Entropy usually refers to the randomness of a system. A reaction is said to be spontaneous if it…