Calculate the entropy change for the freezing of 112 g of ethanol, C2H5OH, at its freezing point of –114°C. The heat of fusion for ethanol is 5.02 kJ/mol.

Q: a) H2(g)→ 2H(g) b) N2 (g. 1 atm) → N, (g, 8 atm) C) 2SO3(g) → 2SO,(g) + O2(g) d) C (Diamond) → C…

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Q: Estimate the boiling point of an unknown substance in deg C if the latent heat of vaporization of…

A: We have to predict the boiling point.

Q: Indicate whether each process produces an increase or decrease in the entropy of the system

A: Given :-  (a) CO2(s) —> CO2(g) (b) CaO (s) + CO2 (g) —> CaCO3 (s)  (c) HCl (g) + NH3 (g) —>…

Q: Which change will result in an overall decrease of entropy? (A) CaCO:(s)→CAO(s) + CO:(g) (B)…

A: Which change will result in an overall decrease of entropy ?

Q: Which of the following statements concerning entropy is/are CORRECT?   1. The entropy of a…

A: The entropy measures the randomness of a system. The entropy of a system will be higher at a higher…

Q: If the helium was open to the atmosphere and you heated it from 25°C to 100°C, would the change in…

A: the change in entropy will be larger  than heating it in a sealed box.

Q: Chloroform chci3 is a solvent and has been used as an anesthetic the heat of vaporization of…

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Q: Without doing a calculation predict whether the entropy change will be positive or negative when…

A: Entropy is the degree of disorderness or randomness. More closely packed the molecules, lesser will…

Q: Consider a pure, crystalline solid being heated from absolute zero to some very high temperature.…

A: Entropy is a measure of randomness, so greatest increase in entropy will take place in the process…

Q: State whether the sign of the entropy change expected for each of the following processes will be…

A: Entropy is a thermodynamic quantity that is a measure of randomness. The more entropy, the more will…

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: Which of the following describes the entropy change in the given reaction? 2 ClO-(g) → 2 Cl2(g) + 7…

A: For the given reaction;  2 Cl₂O(g) → 2 Cl₂(g) + 7 O₂(g)  Sign of entropy = change in no of moles in…

Q: Indicate whether the following statements are true or false: A reaction that is spontaneous in the…

A: Spontanity of a reactions describes the ease of a reaction to occur.

Q: Which of the following statements best describe the entropy change of this reaction CO(g) + H2O(g) →…

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Q: Describe one reversible process. Then, state whether the following actions increase entropy,…

A: The process in which the initial state of the system and its surroundings can be brought back…

Q: onsider the combustion reaction of ethane: 2 C2H6 (g) + 7 O2 (g)  6 H2O (g) + 4 CO2 (g) Which is…

A: The given reaction is, 2C2H6g+7O2g→6H2Og+4CO2g

Q: Which best describes the entropy change for the following process? 2 SO2(g) + O2(g) → 2 SO3(g) А.…

A: We know that, Entropy measure randomness. Gas having more randomness than solid and liquid.

Q: What would cause entropy to decrease in a reaction? A. The products gaining more mobility than the…

A: The entropy of the system decreased if the system becomes more ordered. in this reaction, the…

Q: State whether the sign of the entropy change expected for each of the following processes will be…

A: Answer :             1. ∆S is negative.             2. ∆S is positive. Explanation :            We…

Q: N,(g) + 0,(s) + heat ® 2 NO (g) A) Does the tendency to minimum enthalpy favor reactants or…

A: Tendency of minimum enthalpy and maximum entropy can favour products or reactants of a reaction…

Q: 6. Which of the processes will lead to a positive change in the entropy of the system? a.…

A: Answer: Entropy is the measure of system's disorderliness or randomness. In more possible states…

Q: Cells use the hydrolysis of adenosine triphosphate (ATP) as a source of energy. The conversion of…

A: C6H12O6+6O2→6CO2+6H2OGibbs free energy,   ∆G° =∆G0product-∆G0reactant…

Q: For each of the following reactions, indicate whether you would expect the entropy of the system to…

A: As the number of gaseous moles increases on the product side the entropy is said to be increasing…

Q: Which of the following statements explains why systems naturally progress toward higher entropy? A)…

A: According to second law of thermodynamics, entropy of a system always increases due to natural…

Q: What is the molar entropy of pure oxygen gas at 25 °C?     Greater than zero     Equal to zero…

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Q: Which of the following statements correctly describes the nature of entropy? O Reversible reactions…

A: Applying concept of entropy with the help of law of thermodynamics.

Q: Which process is necessarily driven by an increase in the entropy of the surroundings?

A: firstly we undrstood entrophy  ;Entropy is a measure of the energy dispersal in the system. We see…

Q: 15. The entropy will usually increase when I. a molecule is broken into two or more smaller…

A: Entropy = Entropy is the measure of spontaneous changes that occur in the system. It is referred to…

Q: Without doing a calculation predict whether the entropy change will be positive or negative when…

A: Entropy is a thermodynamic quantity that gives us the measure of randomness or measure of disorder…

Q: A. H2O(l)+CO2(g)→H2CO3(aq) B. 2Na3PO4(aq)+3CaCl2(aq)→6NaCl(aq)+Ca3(PO4)2(s) C.…

A: In simple words entropy is measure of randomness or disorder of system. More randomness more is…

Q: which statement about entropy is true? non-spontaneous reactions sometimes will happen all by…

A:

Q: 35. List the following in terms of increasing entropy (from lowest to highest), assuming one mole…

A: Since as we know that ;  (In one mole )  Entropy of N2 (g) = 191.61 J/K.mol Entropy of HNO3 (l) =…

Q: For each of the following reactions, indicate whether you would expect the entropy of the system to…

A: Entropy gives us the sense of how random the molecules in the system are. Higher entropy means…

Q: For the following reactions, indicate whether the entropy of the system increases, decreases, or…

A: Entropy of the system of given three reactions are -

Q: Entropy of a system would decrease when a substance goes through 1. A melting evaporation C boiling…

A: The correct option is (d) i.e. condensation. Melting leads to conversion of solid into liquid due to…

Q: Predict which member of each of the following pairs has the greater standard entropy at 25 °C25 °C:…

A: Answer:- This question is answered by using the simple concept of entropy which is the degree of…

Q: Select the compound expected to have the greatest entropy at room temperature: a. HF b. HCl c.…

A: Entropy can be defined as the randomness of a system that is the movement. Therefore entropy of a…

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

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Q: Which of the following processes shows an increase in entropy of the system? 2NO₂(g) → 2NO(g) +…

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Q: Which of the following substances is likely to have the highest entropy? Link to Physical Constants…

A: The substances given are He, H2, CO2, N2 and H2O (l).

Q: Predict whether the entropy change is greater or less than zero for the following process: dry ice…

A: Determine entropy change on dry ice subliming ---

Q: Consider samples of ice, water, and water vapor that all equal in mass.  Which of the three samples…

A: There are sample of Ice , water and water vapours having equal masses . Entropy is degree of…

Q: Entropy. Consider the reaction below. 2 CO(g)O2(g) 2 CO2(g) a) 4. ΔΙοχη -566 kJ Calculate the…

A: (a)The entropy change in the surrounding after a chemical reaction at constant temperature and…

Q: Write an essay. The second law of thermodynamics says that the entropy of the universe is constantly…

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Q: Which pure substance under standard conditions would have the highest entropy?   O2   HCl   CH3OH…

A: Standard conditions are usually defined as 298 K (25 degrees Celsius) and 1 atm of pressure. Note…

Q: Which statement is true about the relationship between entropy and spontaneity? spontaneous…

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