Which of the following processes is both exothermic (at 1 atm) and spontaneous? A) Sublimation of CO2 at 30°C B) Dissolving NH,CI(s) in water and the solution temperature drops C) Condensation of water at 99.5°C D) H2O(1) H20(g) at 101.0°C E) Freezing of water at 3°C

Q: For a certain chemical reaction, AH" = +9.8 kJ and AS = +30.0 J/K. a) Is the reaction endothermic or…

A: The More the Negative value Of gibbs free energy more spontaneous  will  be reaction.

Q: 2 AgNO3 (s)  +  SO2 (g)      →     Ag2S (s)  +  2 NO2 (g)  +  2 O2 (g) Is the reaction spontaneous…

A:

Q: Consider the reaction in the previous problem H2O2 0 H20 + O2e) Is the reaction spontaneous or…

A: A spontaneous reaction is one which takes places on its own. For a spontaneous reaction, ∆G∘should…

Q: Ozone in the lower atmosphere is a pollutant that can form by the following reaction involving the…

A:

Q: 6. At a constant pressure the following reaction is exothermic: 2 NOe) → N;Oe)- Which of the…

A: 2 NO2(g) ---> N2O4(g) This Reaction is exothermic (at constant pressure ). The reaction is…

Q: Consider the reaction at 298 K: 2 NO(g) + O2(g)¡2 NO2(g) ΔG°rxn = -71.2 kJCalculate ΔGrxn under…

A: The equation for Gibbs free energy of a reaction is given below,…

Q: 6. A reaction has a AH° of -29 kJ and AS° is -60. J/K. Calculate the temperatu from spontaneous to…

A: Spontaneous reactions are those reactions which proceed on their own without any external force.…

Q: 1) Calculate ΔH0rxn , ΔS0rxn and ΔG0rxn for the formation of ammonia gas from nitrogen gas and…

A: Here we are required to Gibbs free energy for the given reaction .

Q: Which of the following processes are spontaneous?(a) A satellite falls to Earth. (b) Water…

A: A spontaneous process occurs by itself (possibly requiring an initial input of energy) whereas a…

Q: Which of the following is a spontaneous process? A. A ball rolls up a hill B. A fruit turns yellow…

A: Given processes, A. A ball rolls up a hill B. A fruit turns yellow as it ripens C. Ice is formed at…

Q: At high temperatures, ammonia decomposes to N2 and H2:  2NH3 (g)= n2(g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

Q: The combustion of methane in oxygen is spontaneous at 25°C with all gases at 1 atm.: CHĄ(9) + 202(9)…

A: The combustion reaction is the chemical reaction in which the substance is burnt in presence of…

Q: Is the following reaction spontaneous at room temperature (25.0 °C) ? 2 H2S(g) + 3 O2(g) 2 SO2(g) +…

A: Interpretation: The given reaction is spontaneous at room temperature or not is to be determined. At…

Q: Which of these processes is spontaneous?a. the combustion of natural gasb. the extraction of iron…

A: The spontaneous process can take place without having energy from the external source. In these…

Q: For the process, CO 2 (s) -> CO 2 (g), this process (and explain why) A. is always spontaneous B. is…

A: For any process to be spontaneous, the free energy change must be negative.delta G = delta H - T…

Q: Consider the reaction 2Hg (l) + O2 (g) → 2HgO (s), for which ∆H°= -181.7 kJ/mol and ∆S°= -216.5…

A: Given data is, ∆H°= -181.7 kJ/mol ∆S°= -216.5 J/molK

Q: The crystalline hydrate Cd(NO3)2 .4H2O(s) loses waterwhen placed in a large, closed, dry vessel at…

A: a) The process is spontaneous at room temperature. The standard enthalpy change for the reaction is…

Q: How does probability relate to spontaneity

A: A spontaneous chemical reaction proceed like a downhill. The spontaneity of a reaction can also be…

Q: Solid N205 reacts with water to form liquid HNO3. Consider the reaction with all substances in their…

A:

Q: Is the reaction Si (s) + 2 H2 (g) --> SiH4 (g) spontaneous under standard conditions at 298 K?…

A: Given, Reaction : Si(s) +2H2(g) →SiH4(g) Temperature, T=298 K

Q: At 25 °C the formation of NH, (g) has a positive AS" systom. Is this reaction spontaneous or…

A: Given: ∆Ssystemo=+180 J/K T = 25oC ∆HfoN2g=0 kJ/mol∆HfoH2g=0 kJ/mol∆HfoNH3g=-45.9 kJ/mol

Q: 2.2.Predict if the following reaction is spontaneous or not. CO26)CO(g) at 25°C

A: We have given that  Predict if the reaction is Spontaneous or Not  CO2(s) ------> CO2(g)  at 25°C…

Q: For the reaction C2H6 (g) → C2H4 (g) + H2 (g) ΔH° is +137 kJ/mol and ΔS° is +120 J/K ∙ mol. This…

A: Given, The balanced chemical equation, C2H6 (g) → C2H4 (g) + H2 (g) ΔH°=+137 kJ = 137000 J, and ΔS°…

Q: Consider the oxidation of NO to NO2 :NO(g) + 12 O2(g)¡NO2(g)Calculate ΔG°rxn at 25 °C and determine…

A: If the value of free energy is negative that means the reaction is spontaneous whereas the value of…

Q: ) Are the following processes spontaneous or nonspontaneous? What is the sign on AG? a. Water…

A: The spontaneous reaction occurs without any external conditions whereas the nonspontaneous reaction…

Q: 11.11 A student was asked to propose three reactions for the oxidation of carbon or a carbon…

A: For a reaction to be spontaneous: ∆G=-ve (spontaneous)∆G=+ve (non-spontaneous) For the reaction: a)…

Q: 1A. The entropy will usually increase when I. a molecule is broken into two or more smaller…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: Which of the following statements is true? Select one: The number of microstates,W, is the number of…

A:

Q: For a reaction for which ∆H = -142 kJ/mol and ∆S = -178 J/mol･K, which of the following statements…

A: Applying spontaneity criteria for ∆G -ve.

Q: 2.6. The reaction COXg) H2(g)-> CO(g) + H20(g) is not spontaneous at room temperature but becomes…

A:

Q: Which statement is true?

A: By study of spontaneous process and its graph of potential energy graph we can determine the true…

Q: Without doing any calculations, determine the sign of AS and ASu, for each chemical reaction. In…

A: In a thermodynamic system, the entropy of the system is defined as the randomness of the system.…

Q: For the following decomposition reaction of ozone, O3 to form oxygen, O2. 2O3(g) →3O2(g) a)…

A: For a reaction to take place, some amount of energy is required. This energy is required to do work,…

Q: An exothermic reaction produces two moles of gas from one mole of solid reactant. Will the reaction…

A: Since you have asked a question with multiple questions, we are solving first question for you. For…

Q: Classify each statement as true or false.

A:

Q: Which of the following statements is true of process that is spontaneous in the forward direction?…

A: We have to tell which option is correct from given choices of options.

Q: (a) Is the reaction spontaneous at 25°C? (b) The solid decomposed to NO2 and O2 at 25°C. Is the…

A:

Q: 12. Consider the oxidation of iron metal 4Fe +302g Astotal, Show that the reaction of spontaneous…

A: We need to find ∆Stotal . The sign of it will say that its spontaneous or non- spontaneous. Lets…

Q: Predict which member of each of the following pairs hasthe greater standard entropy at 25°C: (a)…

A: In this question, first we will see which substance have greater standard entropy value. You can see…

Q: For a given reaction, ΔH = +31.15 kJ/mol and ΔS = +126.83 J/K · mol. Above what temperature is the…

A:

Q: Consider the formation reaction of water, the hydrogen balloon reaction: 2 H,(g) + 0,(g) → 2 H,O(g)…

A: The reaction given is, => 2 H2 (g) + O2 (g) → 2 H2O (g)

Q: -Find AH, AS, and AG. Is this reaction exothermic and is it spontaneous? NO (g) + ½ O2 (g) -> NO2…

A: The given reaction is: From the given values- ΔH and ΔS can be calculated as follows: where m and…

Q: 5-For the reaction, A+B C, AH-+30 kJ; AS°=+50 J/K.Therefore the reaction is: (a) spontaneous at all…

A: ∆Hf°is the standard enthalpy change when one mole of a substance is produced from its constituent…

Q: For the reaction of gaseous substances with increasing gaseous molecules (from reactant to product…

A: For the reaction of gaseous substances with increasing gaseous molecules (from reactant to product…

Q: or a particular reaction, AH = -93.8 kJ and AS = -156.1 J/K. Assuming these values change very…

A: Solution - According to the question - Given - ΔH° = -93.8kJ ΔS° = -156.1J / K = -156.1x 10^-3 kJ /K…

Q: Consider the reaction for the decompositon of carbon tetrachloride gas: CCl4(g) ⟶ C(s, graphite) + 2…

A: For the given reaction,△H = +95.7 kJ = 95700 J    (1 kJ = 1000 J)△S = +142.2 J/KTemperature, T = 25…

Q: Question attached

A: A reaction is considered as spontaneous when the Gibbs free energy of the reaction (∆Gorxn) is…

Q: Which are spontaneous at all temperatures? Choose one or more: 2H,S(g) + 302(8) –→ 2H,0(g) + SO,(g)…

A: