sketch how the entropy of water changes as it is heated from -50 °C to 110 °C at sea level. Show the temperatures at which there are vertical increases in entropy

Q: Why does the dissolution of MgCl2 have a negative entropy value?

A: The entropy represents the randomness present in a system. The solid phase has less entropy than the…

Q: Calculate the The molar enthalpy of neutralization AHneut given the following information. CHci soln…

A: qcal = qNaOH + qHCl + n × ΔHneut On substituting the values into it, we get ; 43.7 J = 450 J + 390 J…

Q: Is change in Gibbs free energy for the melting of ice greater or less than zero? A>0 C.-0 D. It…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: 3. The third law of thermodynamics can be combined with experimental data to provide an absolute…

A: Third law of thermodynamics combined with experimental data to determine absolute value of which…

Q: What are the variables in a van’t Hoff plot?     K vs T     K vs 1/T     ln K vs 1/T     ln…

A: To explain: The variables in a van't Hoff plot.

Q: say you have a super saturated solution which you stick a tooth pick and the mixture changes, would…

A: Given: A super saturated solution  Stick the tooth pick in the super saturated solution  The form…

Q: (1) Which ote tollowing has the lowest standard entropy (S) value? (A) N₂O4 (C) NO (B) NO (2) Which…

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Q: What can be said about the sign of the entropy when solid NaCl is dissolving in water? What can be…

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Q: Is the dissolution of ammonium nitrate,is endorthermic or exothermic? Justify your answer

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Q: Explain the various phenomenon in a crystal that contribute to increase in entropy.

A: Entropy is defined as the measure of disorder in crystal or unavailability of energy to do work.…

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

A: Given,              O2(g)→ 2 O(g)    The entropy of the system is:

Q: A chemist was investigating the polymerisation of methanol for the synthesis of propene (C3H6) by…

A: The given data: The enthalpy change of the reaction( ∆Hr)  = -101.18 kJ/mol The entropy change of…

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: 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: What is AH in kJ for the process of freezing a 48.2 g sample of liquid water at its normal melting…

A: The energy required to convert the physical state from liquid to solid is called latent heat of…

Q: Calculate the enthalpy of solution for the dissolution of lithium iodide, LiI, molar mass = 133.85 g…

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Q: When a solute spontaneously dissolves in a liquid, the process is often exothermic. NH4NO3, however,…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: Does the entropy of the system increase, decrease, or stay the same when equal volumes of ethanol…

A: Entropy: Entropy measure the randomness of a system. It basically measure the amount of energy which…

Q: What is the change in enthalpy in joules when 10.5g of AgCl (143.3g/mol) dissolves in water…

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Q: Observe the Figure 1.0 in which the influence of temperature to change in enthalpy, ∆H and entropy,…

A: Each chemical reaction is associated with a certain amount of energy. This energy can be liberated…

Q: choose all Off. the following that will result in a decreasing in entropy off the system; melting of…

A: Choose all of the following that will result in a decreasing in entropy off the system; melting of…

Q: isotropy and anisotropy

A: Isotropy and anisotropy is the property of material which is used to explain basic crystallography.

Q: pick the substance and conditions which should have the higher entropy. a)water at 0K b) water at 0C

A: a)water at 0K b) water at 0C

Q: Does the entropy of the system increase, decrease, or stay the same when (a) a solid melts?

A: Degree of randomness of the system is measured by the entropy. When there is increase in randomness…

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: When two pure substances are mixed to form an ideal solution, O heat is released. there is an…

A: The solutions which follow Rault's law are known as ideal solutions. For an ideal solution, total…

Q: Define formation constant (Kf)?

A: Formation constant Kf describes the formation of complex ion from its central ion and attached…

Q: e standard Gibbs Free Energy, AG n rxn, for th

A: The standard Gibbs free energy of formation of a compound is the change of Gibbs free energy that…

Q: A 0.318 M NaNO3 solution has a density of 1.02 g/mL. a. Does (pure) water or the solution have a…

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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: Predict whether the following reaction shows an increase or a decrease in entropy B₂H6(g) 2 B(g) + 3…

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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: Which of the following statements is false?

A: Entropy is defined as randomness between the molecule and we know that the randomness is increase as…

Q: A. Calculate the Gibbs free energy change in klimol of the following reactions at 29% K, given their…

A: As per our guidelines we are supposed to answer first three questions.

Q: If Gibbs free energy (at standard conditions) of a reaction is -22.8 kj/mol, what is the equilibrium…

A: Given information:Gibb’s free energy for a reaction = 22.8 kJ/molStandard temperature = 25◦ C…

Q: Suppose you have a mole of water at 25°C and atmospheric pressure. Use the data at the back of this…

A: The expression for Gibbs Free energy is: ΔG = - S ΔT + VΔP + μΔ P Here, S is the entropy, ΔT is the…

Q: The following thermodynamics data were obtained for dissolving KNO3 in water: The slope of the…

A: The equation that relates equilibrium constant and Gibb's free energy is; ∆Go=-RT ln…

Q: Calculate the entropy change when water freezes. Standard state entropy values for water:     H2O…

A: Entropy for liquid state = 70 J/mol K Entropy for solid state = 41 J/mol K We need to find entropy…

Q: 3) Give five examples of reactions that result in increase in entropy of the system.

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

Q: A reaction is carried out at 25 °C with AH° = 20 kcal/mol and AS° = 25 cal/K-mol. (R : 8,314 J/K-mol…

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Q: If the system is in order manner, the change in entropy is lower. Which of the following decreases…

A: Entropy is nothing but the randomness of particles in system any system. The order of entropy for…

Q: (a) Adsorption of a gas on surface of solid is generally accompanied by a decrease in entropy, still…

A: A reaction is said to be spontaneous ∆G for the reaction is negative.

Q: When a solute dissolves spontaneously in a liquid, the reaction is frequently exothermic. NH4NO3, on…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: A. Calculate the Gibbs free energy change in kJ/mol of the following reactions at 29% K. given their…

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Q: You add some of the white crystals to a small test tube filled with water. The water in the test…

A: Here we have to say the change in Gibbs free energy for above dissolution process of some crystals-

Q: What would be the equilibrium temperature if you drop 5.0 g of brass (Cp = 0.38 J/g-°C, initially at…

A: Use calorimetry principle to get answer Heat flow from high temperature to low temperature. Heat=…

Q: Please help?? Is the reaction pictured endothermic or exothermic? Does entropy increase or decrease?…

A: Dissolution of sodium chloride in water is a bond breaking process.  For the breaking of bonds, heat…

Q: Calculate the vapor pressure of ethnaol at 25 Celsius. Assume the thermodynamic values are…

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