Consider the following reaction at 298 K.   C(graphite)+2H2(g)⟶CH4(g)ΔH∘=−74.6 kJ   Calculate the following quantities. Refer to the standard entropy values as needed.   Δ?sys= ?   Δ?surr= ?   Δ?univ= ?

Q: Module 8, Is the change in entropy for the following chemical reactions positive or negative? (Note:…

A: Equilibrium constant is defined as ratio of concentration of product to concentration of reactant.

Q: It refers to how a circumstance can occur without the help of any external factors? O a Entropy Ob…

A: Spontaneity ----> it refers to the circumstances which can occur without any external factors.…

Q: methanol, CH3OH, vaporizes at 25°C is 35.4 kJ/mol. What is the entropy change (in J/K) when one mole…

A: Given,   □Hvap = 35.4 kJ/mol T = 25 °c = 298 K □S = □H/T   = 35.4 ×1000/298 = 118.79 J/K-mol

Q: Cyclopropane and propylene are isomers that both have the formula C3H6. Based on the molecular…

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Q: Calculate the change of the entropy of the reaction for the formation of ammonia from nitrogen and…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: Calculate the entropy changes for the following processes: Melting of one mole of tin at its melting…

A: Entropy change of any process at constant temperature and pressure is given by  ΔS = Q / T where ΔS…

Q: The enthalpy change when liquid methanol, CH3OH, vaporizes at 25°C is 38.0 kJ/mol. What is the…

A: Since the condensation process is happening at constant temperature Hence the entropy change can be…

Q: Calculate the change in entropy that occurs in the system when 1.00 mole of isopropyl alcohol…

A: Given data Number of mole of isopropyl alcohol : n = 1.00 mole Boiling point of isopropyl alcohol :…

Q: Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + O2 (g) The…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

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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: Calculate the change in entropy that occurs in the system when 54.0 g of acetone (C3H6O) vaporizes…

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Q: Which of the following substances has the highest standard molar entropy (S°) at 25°C?     a. .…

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Q: What is the total entropy change at 25oC for the reaction below, if the standard entropies of…

A: Given reaction at 25°C;  C6H10 (g) ↔ 6C (gr) + 5H2 (g) The standard entropies of reactants and…

Q: For which of the following reactions will the entropy of the system decrease? CaCO3(s) → CaO(s) +…

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Q: Calculate the standard entropy change for the following reaction. 4 Al(s) + 3 02(g) → 2 Al,O3(s) JK!

A: A numerical problem based on entropy change, which is to be accomplished.

Q: What is the change in entropy when 0.600 g of water decomposes to form hydrogen gas and oxygen gas…

A: Given, 2H2O(l) ----> 2H2(g) + O2(g); Delta S° = 326.3 J/K at 298 K

Q: which of the following reaction leads to an increase in entropy of the system? a) NH4Cl(s) ->…

A: * Answer : Correct option is which entropy increases __ a) NH4Cl(s) -----> HCl(g) + NH3(g)   *…

Q: Examine each of the reactions in the multiple choices below and decide whether the entropy change…

A: If gaseous mole of product increases then reaction have positive entropy change if gaseous mole of…

Q: N2(g) + 3H2(g) → 2NH3(g) Decide which standard entropy (S°) corresponds to which chemical species…

A: The given reaction is the formation of ammonia from the reaction of nitrogen and hydrogen gas. The…

Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

A: Calculate change in entropy of the reaction---

Q: Enter your answer in the provided box. Calculate the standard entropy change for the following…

A: Using the table of standard entropies of reactants and products, the standard entropy change for the…

Q: 5.sl9 ähäi Predict which of the following substances has the highest entropy value at 25°C Mg0 (s) O…

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Q: Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + 02 (g) The…

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Q: Calculate how entropy of 100 g of water changes when it is heated(under reversible conditions)from…

A: Here, since 00C is given for temperature, I consider it as 0oC and 1000C as 100oC That is…

Q: Calculate the entropy change in surroundings when 1.00 mol of H2O (l) is formed under standard…

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Q: Which of the following reactions results in an increase in the entropy of the system? A) CH₄(g) +…

A: When degree of randomness of products is greater than reactants they result in an increase in…

Q: The enthalpy of vaporization of methanol (CH3OH) is 35.3 kJ/mol at the boiling point of 64.2 °C.…

A: The vaporization can be defined as phase transition from liquid phase to vapor phase.

Q: Calculate the change in entropy that occurs in the system when 1.00 mole of isopropyl alcohol…

A: freezing point (T)=-89.5∘C=183.5Kno. of moles(n)   =1.00 molesthe latent heat of fusion of isopropyl…

Q: At 25 oC, which of the following substances has the least molar entropy? A. N 2(g) B. C 6H 6(l) C.…

A: Given,        Four substances are given  -                                    A. N2 (g)  B. C6H6 (l)…

Q: Calculate the standard entropy change for the following reaction at 25°C. CH,(g) + 2 O2(g)→ CO2(g)…

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Q: Rank the following compounds in order of INCREASING standard molar entropy. a. H2O2(l), H2O(l),…

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Q: The heat of vaporization of carbon disulfide, CS2, at 25℃ is 27.2 kJ/mol. What is the entropy change…

A: For a phase change, entropy change is given by,

Q: What is the standard molar entropy change of the following reaction? 8 NH:(g) + 10 O:(g) 8 NO(g) +…

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

A: Since you have asked multiple question ,we will solve the first three question for you. To get the…

Q: 5. Which of the following substances has the greatest standard molar entropy at 25 °C? a) Na (s) b)…

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Q: Calculate the entropy change in surroundings when 1.00 mol of H:0 ) is formed under standard…

A: Given : Moles of H2O=1 mol ∆fH=-286 kJ / mol CO(g)+2H2(g)⇔CH3OH(g) To find: Entropy change in…

Q: Enter your answer in the provided box. Calculate the standard entropy change for the following…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

A: Given reaction : Al2O3(s) + 3H2(g) → 2Al(s) + 3H2O(g) Now, we have to calculate ∆S°rxn(standard…

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

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Q: A hot rock ejected from a volcano’s lava fountain cools from 1100C to 40.0C, and its entropy…

A: Given: Initial temperature, T1=1100°C=1373.15 K Final temperature, T2=40°C=313.15 K Decrease in…

Q: When fumes of ammonia and fumes of hydrobromic acid meet, they form a “smoke” of solid ammonium…

A: The question is based on the concept of chemical thermodynamics. we have to calculate enthalpy,…

Q: Rank the following substances from the least to greatest in terms of standard entropy (1 as the…

A: Gaseous state has highest randomness so highest entropy followed by liquid state and lest is solid…

Q: Calculate the standard entropy of formation of liquid ethanol

A: Entropy is the randomness or disorder. entropy of formation of reaction is calculated by using the…

Q: Calculate the standard entropy change for the following reactions at 25 C. 2 Na (s) + 2 H2O (l) -->…

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Q: By examining the following graphs, predict which element- copper or gold-has the higher absolute…

A: To predict which element Cu or Au has a higher absolute entropy at a temperature of 200 K.

Q: In which of the following processes does the entropy of the system decrease? (i) CH4(g) + 2 O2(g)…

A: Entropy is the measurement of disorder.  Gases have more entropy than liquids and liquids have more…

Q: 1. The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0 °C to 560…

A: Since you have posted multiple questions. we are entitled to answer the first only.

Q: Which of the following processes shows a decrease in entropy of the system? Select one: O a. 2…

A: Entropy is the randomness or disordnerness of the system. ∆S= ∑SP-SR1. If ∆S= +ve ⇒Entropy…

Q: The normal boiling point of ethanol, C,H;OH, is 78.3°C, and its molar enthalpy of vaporization is…

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