At 1 atm pressure, CO2(s) sublimes at -78 °C. Is this processspontaneous at -100 °C and 1 atm pressure?

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: The dissolution of ammonium nitrate occurs spontaneously in water at 25 °C. As ammonium nitrate…

A: On dissolution, the temperature of the reaction decreases which means that the reaction is…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: According to the question about the formation of ammonia we have, The Change (decrease) in the…

Q: What is the advantage of calculating free energy changesrather than entropy changes to determine…

A: The entropy change of the system depends upon the randomness. As the randomness of the system…

Q: HEAT + N204 = 2NO2 if the temperature increased, what would be the effect on the equilibrium? also…

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Q: Which of the following represents an increase in entropy? O a. Formation of water vapor O b. Boiling…

A: Here we have to predict the process in which  there is increase of of entropy  occur.

Q: Which of these processes result in an entropy decrease of the system?

A: Entropy means randomness. All spontaneous processes have positive or zero entropy change. This means…

Q: You are studying the decomposition of CaCO3(s). CaCO:(s) → Cao(s) + CO2(g) ) At what temperature…

A: Given reaction:  Decomposition of CaCO3(s)

Q: Define the following terms:a. workb. exothermic reactionc. endothermic reactiond. isothermic…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: 1. Consider the freezing of liquid water at -10°C and 1 atm. For this process, what are the signs…

A: Exothermic transitions are those transitions that release heat for example freezing and condensation…

Q: Calculate ΔGo for the process C(diamond) C(graphite) Is the formation of graphite from diamond…

A: Calculate ΔGo for the process conversion of C(diamond) into C(graphite). ΔGo is the Gibbs free…

Q: A chemical reaction is always spontaneous if it is accompanied by Oa. endothermic and increasing…

A: When reaction is endothermic then it's required energy from the external sources then it's converted…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: we have to calculate the value of ∆SUNIV

Q: Which system below has the greatest entropy? а. b. с. d. O Figure D Figure B Figure A O Figure C

A: Entropy is a measure of the randomness of the system. The entropy change in a chemical reaction can…

Q: At 1 atm pressure, CO2 sublimes at -78 degrees C. Is this process spontaneous at -100 degrees C and…

A: Given. At 1 atm pressure, CO2 sublimes at -78 degrees C.

Q: Which substance has the greatest entropy, He(g) or Na(s)? Explainyour reasoning.

A: ENTROPY: Entropy is defined as a measure of the randomness or the disorderliness of a thermodynamic…

Q: A reaction has the following thermochemical values at 272.15 K: ΔH = -189.3 kJ mol-1 ΔS = -166.0 J…

A: Given-> Temperature (T) = 272.15 K ∆H = -189.3 kJ.mole-1 = -189300 J.mole-1(1KJ=1000J) ∆S =…

Q: A chemical reaction is most likely to be spontaneous if it is accompanied by A. increasing energy B.…

A: Spontaneous reaction/process - The reaction which occurs on its own without the requirement of any…

Q: entropy change for the reaction 2 SO2(g) + O2(g) → 2 SO3(g)

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Q: Which of the following reactions indicates an increase in entropy?

A: In case of homogeneous gaseous reaction :- if number of gaseous moles of products are more than the…

Q: SO2(g)+2H2S(g) --> 3/8S8(s)+2H2O(g)  at what temperature does the reaction become spontaneous?

A: Since the reaction becomes spontaneous when the net gibbs free energy change of the reaction becomes…

Q: Above what temperature does the following reaction become nonspontaneous?         N2O4(g) + 4 H2(g)…

A: N2O4(g) + 4 H2(g) → N2(g) + 4 H2O(l)   for the spontaneous reaction ;∆G= negative as we…

Q: Which of these processes are nonspontaneous? Are the nonspontaneous processes impossible?a. a bike…

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Q: Kyanite, sillimanite,and andalusite all havethe formula Al₂SiO₅.Each is stable under dif-ferent…

A: a)  All the three minerals are having equal free energy at equilibrium.   b)  Among the three…

Q: Which two of the following are spontaneous processes? (Circle only two): a) rusting of an iron nail…

A: A reaction which occurs without the input of energy is called a spontaneous reaction.

Q: For the reaction CH4(g) + H2O(g)3H2(g) + CO(g) H° = 206 kJ and S° = 215 J/K G° for this reaction…

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Q: 10.43 Which reaction occurs with the greater increase in entropy? Explain yo (b) Br,(g) + Cl,(g)→ 2…

A: 10.43 has been solved. For 10.47 b, more data is needed from the table.  Entropy is the measure of…

Q: The vaporization of ethanol CH,OH() → CH;OH(g) at its normal boiling point, 351 K, has AS = 110. J/K…

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Q: A reaction has the following thermochemical values at 283.15 K: ΔH = -183.3 kJ mol-1 ΔS = -160.6 J…

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Q: Consider the reaction. Fe(s) + 2HCl(aq) FeCl₂(s) + H₂(g) Based upon the stoichiometry of the…

A: Fe(s) +2HCl(aq) -----> FeCl2(s) + H2(g)  -> Gas has greater entropy than liquid and liquid has…

Q: Which figure represents a process with a positive entropy change? 8. 8 8

A: Entropy :-  It is a measure of randomness or disorderness present in the system . If the randomness…

Q: Which of these processes are nonspontaneous? Are the nonspon-taneous processes impossible? a. a bike…

A: Spontaneous processes are those which take place on their own such as rusting of iron. These are…

Q: For each of the following processes, tell whether the entropy of the universe increases, decreases,…

A: Note!  As you have not specificied which subparts you want to be answered, so I am solving only…

Q: Consider a process which has ΔSuniv > 0 at 25°C. Which of the following statements is/are always…

A: Given that : We have to identify which of the following statements is/are always true : I) The…

Q: Dissolution of ionic compounds generally involves an increase in entropy (+ΔS°), but for a few…

A: entropy is measurement of randomness.As the randomness increase entropy also increase. In…

Q: For the following process, does entropy increase, decrease or remain the same: H20 (s) --> H2O (1) O…

A: Entropy is a measure of randomness, disorder of a system. Entropy, the measure of a system's thermal…

Q: Which process is not reversible? O melting wax dissolving sugar in water O burning butane in a…

A: Reaction would not be reversible if it is not turn back by any process 1. Melting of wax is a…

Q: Which best describes the entropy change for the following process? CO2(g) + H2(g) CO(s) + H2O(g)

A: Question 1 The number of gaseous compounds decreased in the product. So that randomness decrease…

Q: At 298 K, ΔH° for this reaction is -137.5 kJ/mol, and ΔS° is +120.5 J/K. What is the value of ΔG°…

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

Q: For the reaction 2HBR(g) + Cl2(g)- 2HCI(g) + Br2(g) AH° = -81.1 kJ and AS° = -1.20 J/K At standard…

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Q: 2. Predict the sign of ASsys for each process. a. A piece of wax melts. Positive b. Silver chloride…

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Q: Dissolution of ionic compounds generally involves an increase in entropy (+ΔS°), but for a few…

A: The degree of randomness in atoms or ions or molecules of a compound is considered to be its…

Q: Does entropy increase or decrease in the following process? N2 + 3H2 → 2 NH3

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Q: Consider the melting of ice at 0°C represented by the following equilibrium: H2Ols) H2O() The AS°…

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

Q: Predict the sign of ΔSₛᵧₛ for each process: (a) A piece of waxmelts. (b) Silver chloride…

A: Entropy(S) It is defined as randomness of any system or how much a system is free. Entropy is a…

Q: Spontaneous chemical reactions proceed until they hit equilibrium.  Once the reaction hits…

A: Spontaneous chemical reactions are reactions which takes place without the addition of external…

Q: d. The temperature at which the reaction starts to be spontaneous

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Q: If either of the reactions is nonspontaneous but can become spontaneous, at what temperature might…

A: The relation between free energy and enthalpy is shown below: ∆G = ∆H -T∆S where; ∆G = change in…