Predict which substance has greater molar entropy. Explain.(a) CH3OH(l) or C2H5OH(l)             (b) KClO3(s) or KClO3(aq)(c) Na(s) or K(s)

Q: 1)Which substance has the higher entropy?a) dry ice (solid CO2) at –78 OC or CO2(g) at 0 OCb) liquid…

A: 1. CO2(g) at 0oC has higher entropy than dry ice at -78oC, because gas has higher entropy due to its…

Q: Which of these processes are spontaneous? (a) Water evaporates from a puddle. (b) A lion chases an…

A: The processes that are spontaneous has to be identified.

Q: Determine the entropy change for the combustion of liquid ethanol, C2H5OH, under standard state…

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Q: a) For the vaporization of a liquid at its boiling point, A(l) → A(g), is the entropy change of the…

A: The entropy tells the randomness present in the system due to its disorderness created in the system…

Q: Methanol is relatively inexpensive to produce. Much consideration has been given to using it as a…

A: ∆SCH3OH = 126.8 kJ/mol ∆SCH4 = 186.264 kJ/mol ∆So2 = 205 kJ/mol

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: The element mercury, Hg, is a silvery liquid at room temperature.  The normal freeing point of…

A: In this question, we want to determine the ∆S value means entropy change in J/K unit. You can see…

Q: 2. Calculate the equilibrium temperature to determine wi AHxn =-65.0 kJ/mol ASrxn 78.0 J/mol K (A)…

A: This question belongs to Thermodynamics. As per the guidelines I can answer first question only.

Q: DSSUR…

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Q: Calculate the standard entropy change for the following reaction at 25 oC…

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Q: 1. Predict which substance has greater molar entropy. Explain. (a) CH4(g) or CCl4(l) (b) NO2(g) or…

A: The answer of the above mentioned question is shown below:

Q: Calculate the change in entropy that occurs in the system when 1.00 mole of diethyl ether (C4H10O)…

A: A compound has three phases. These forms are solid, liquid and gas. When one phase is converted to…

Q: Consider the reaction2H2O(g) + 2Cl2(g) ---> 4HCl(g) + O2(g)for which H° = 114.4 kJ and S° = 128.9…

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Q: Predict the sign of the entropy change (positive or negative) for the following process. Na…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: Two different crystalline forms of sulfur are the rhombic form and the monoclinic form. At…

A: The entropy of the system is increased during the transformation of rhombic sulfur to monoclinic…

Q: The normal boiling point of ethanol, C2H5OH, is 78.3 °C,and its molar enthalpy of vaporization is…

A: Record the given data, The given boiling point Tb = 78.3oC = 351.45 K ΔH = 38.56 kJ/mol = 38560…

Q: Determine the entropy change for the combustion of gaseous propane, C3Hg, under the standard…

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Q: Which system has the greatest entropy? (a) 1 mol of H2(g)at STP (b) 1 mol of H2(g) at 100 °C and 0.5…

A: Entropy is also a measure of the molecular disorder, or randomness, of a system. The entropy of an…

Q: (a) In a chemical reaction 3 moles of A(g) and 2 moles of B(g) react to form 4 moles of C(g) and 1…

A: DS is referred as change in entropy.

Q: Predict the sign of the entropy change of the system for each of the following reactions. Explain…

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Q: What must the sign of ∆G be for any spontaneous process

A: Dear student I have given answer to your question in the image format.

Q: Which process(es) listed below occur with an increase in entropy? (i) Water in the ocean warms up…

A: Entropy is a measure of the randomness of the molecules of a substance. For a spontaneous reaction…

Q: Calculate the standard entropy change for the reaction at 25 °C.  2CH3OH(g)+3O2(g)⟶2CO2(g)+4H2O(g)…

A: The given balanced equation -

Q: Predict the sign of the entropy change for the following processes.(a) An ice cube is warmed to near…

A: (a) When an ice cube is warmed to near its melting point, the temperature of the system will…

Q: (b) 2 Na(s) + 2 H20(1) → 2 NaOH(aq) + H2(g) As° J/K rxn As° × 10 J/K (enter your answer in…

A: Given data :- 2Na(s)    +     2H2O(l)     →   2NaOH(aq)    +    H2(g) ∆S for Na = 51.05 J/mol.K ∆S…

Q: Which statement is INCORRECT with respect to thermodynamics? A) The sign of ΔG for a reaction is…

A: A) Gibbs free energy change, ∆G is related with enthalpy change, ∆H, temperature and Entropy change,…

Q: The following entropy values are for carbon tetrachloride (liquid and vapor):       For CCl4(l), So…

A: Given  Boiling point   = 76.72 ℃                         = (76.72 + 273)                        =…

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 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: The enthalpy of vaporization for bromine (Br2) is 184.3 kJ/kg, and its boiling point is 59.3°C. What…

A: Entropy is the degree of randomness or disorderness.   Equation for change in entropy ( ΔS) is,…

Q: The entropy of vaporization of water is 109.0 J/mol · K. What is the enthalpy of vaporization of…

A: Given: Entropy of vaporization of water = 109.0 J/mol.K.

Q: Predict the algebraic sign of the entropy change for the following reactions. PCl3(g) + Cl2(g) →…

A: Entropy ( S ) :-  Entropy is a measure of disorderness or randomness in a system . If randomness…

Q: What is entropy, and what is ΔS for a reaction, and what does it mean if ΔS is positive or negative?

A: Answer  The measurement of randomness is called entropy, entropy…

Q: What is entropy, S, and how is entropy related to spontaneous change?

A: Entropy is defined as,  A measure of randomness or disorder of a system.      OR  The amount of heat…

Q: Calculate the standard molar entropy change for the conversion of nitrogen monoxide to nitrogen…

A: 2 NO + O2 ==> 2NO2

Q: For each of the following pairs, predict which substancepossesses the larger entropy per mole: (a) 1…

A: Entropy is defined as the degree of randomness of a compound.