Which of the following statements explains why CO2 sublimates instead of melts at atmospheric pressure? a. the chemical potentials of gaseous CO2and liquid CO2 become equal  b. the chemical potential of liquid CO2is greater than the chemical potential of gaseous CO2 under these conditions c. liquid CO2and gaseous

Q: QUESTION 37 Which one of the following processes is not disordering and not endothermic at 1 atm? a.…

A: Answer: Entropy is the measure of system's disorderliness or randomness, more disordered the system…

Q: Consider the ionization of nitrous acid at 25 °C:             HNO2(aq)       H+(aq) + NO2 –(aq)…

A: Using the relation ΔG= -2.303RTlogKeqm we can find value of Keqm.

Q: Consider this hypothetical chemical reaction. A(s) + 3B(g) C(g) 25 The equilibrium constant for…

A:

Q: solve the question in the image.

A: Standard Gibbs energy of formation of gases is – NO2= 51.3 kJ/mol O2 = 0 kJ/mol N2 = 0 kJ/mol

Q: Calculate the equilibrium partial pressure of nitrogen in an inert gas over liquid lithium at 527oC…

A:

Q: Deuterium (D or 2H) is an isotope of hydrogen. The molecule D2 undergoes an exchange reaction with…

A: Given information: Initial temperature(T1) = 298 K Final temperature(T2) = 490 K Kp1 = 1.8 ΔHrxno =…

Q: Calculate ΔS per mole for the melting of CH3OH at  −97°C,  ΔHfus = 3.2 kJ/mol.

A: The free energy change expression is written below.

Q: The molar entropies of carbon monoxide and carbon dioxide at 25°C are 197.7 and 213.8 J/molK,…

A: The molar entropy in terms of micro-state is given as :

Q: What is the change in Gibbs Free Energy  in joules for the following reaction at room tempature?…

A: Given reaction and information,       H2(g) + I2(g) → 2HI (g)           K=794

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A: The objective of the question is to choose the right statement from the given options. When…

Q: An ice cube at 0 Celcius melts when placed inside a room at 22 Celcius. Based on the concepts of…

A: Melting of ice requires energy to melt. So it is an endothermic process. The process in which energy…

Q: For the following reaction, N₂O(g) + ¹/2 O₂(g) = 2 NO(g) Calculate the equilibrium constant at 298 K…

A: Given ,

Q: What is the Gibbs Free Energy change of a reaction that has Keq of 12.5 at 25degC? a.6.26 kJ/mol…

A: Given that: Keq = 12.5 T = 25°C = 25°C + 273 = 298K

Q: From data in Appendix 4, calculate AH, AS, and AG for each of the following reactions at 25°C. a.…

A: ∆H° is the Standard enthalpy change for a reaction. ∆S° is the Standard entropy change for a…

Q: of nitric oxide, NO, at 1000. K (roughly the temperature in an automobile engine during ignition) is…

A: Answer: c.  7.93×10^-5

Q: 8. Consider the equilibrium below. (CF3)2CO (g) + H₂O (g) (CF3)2C(OH)2 (g) K = 1.25 x 10-³ Choose…

A: The value of equilibrium constant, K is a measure of the extent of the equation.

Q: Explain the various phenomenon in a crystal that contribute to increase in entropy.

A: Entropy is defined as the measure of disorder in crystal or unavailability of energy to do work.…

Q: For the reaction C(s) + ½ O2(g)  ➜  CO(g) + 26.4 kJ Which phrase describes the reaction?   Select…

A: Given, C(s) + ½ O2(g)  ➜  CO(g) + 26.4 kJ we need to describe the reaction

Q: Consider the reaction: N204(g) 2 NO2(g). What is AS° at 25 °C? AHP, kJ mol-1 AGf, kJ mol-1 NO2 33.85…

A:

Q: Consider a mixture of 75.00 g water at room temperature 23.0 0C and 25.0 g water at 95.0 0C.…

A:

Q: Determine AG° for 2 NO2(g) – N2O4(g) at 25°C. Substance AG† (kJ/mol) NO2 (g) 51.3 N2O4 (g) 97.8

A: Given data, ∆Gof for NO2(g)= 51.3 KJ/mol And ∆Gof for N2O4(g)=97.8 KJ/mol Given reaction is,…

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Q: Use data from Appendix IIB to calculate the equilibrium constants at 25 °C for each reaction. a. 2…

A: The standard values at 250C: Temperature T= 250C =298K Gas constant R = 8.314×10-3KJ K-1 ∆G0f(CO2) =…

Q: For the following reaction: 2PCl3(g) + O2(g)→2POCl3 (g) a. Use standard enthalpies of formation to…

A:

Q: Based on this reaction CH4(g)  + H2O(g)    CO2(g)  + 2H2(g), what happens when you increase the vol…

A: The reaction given :  CH4(g)  + H2O(g)  <=>  CO2(g)  + 2H2(g)  When we increase the volume of…

Q: certain reaction has a enthalpy value of -157 kJ/mol and an entropy value of -97.6 J/mol K at…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: Question #70 i-iii please

A: The change in free energy of a chemical reaction in the standard state (∆G°) is furnished as the…

Q: 2 H2S(g) + SO2 (g) 3 S rhombic (s) + 2 H2O(g) A. Using the following data, calculate ΔG° for the…

A:

Q: crucial reaction for the production of synthetic fuels is the production of H2 by reaction of coal…

A: For calculating the Equilibrium constant first Calculate the ∆G° for this given Reaction. Where,…

Q: When a solute spontaneously dissolves in a liquid, the process is often exothermic. NH4NO3, however,…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: An ice cube at 0 C melts when placed inside a room at 22 C (295 K). Based on the concepts of…

A: We need to identify the concept of spontaneity behind melting of ice according to thermodynamics.

Q: For the reaction:                       SO3 (g)  →  SO2 (g)  +  1/2 O2 (g)         the ΔHo is…

A: The spontaneous nature of the reaction is determined by calculating the change of free energy of the…

Q: 3. The equilibrium constant for the reaction: 250:(8) + O:(8) = 250,(8) is 2.8 x 10' at 25.0°C. a.…

A: Given, reaction : 2SO2(g) +O2(g)⇌2SO3(g) Equilibrium constant , Keq=2.8×102

Q: Hydrogen is considered a "green fuel" and can be used in fuel cells. One method of hydrogen…

A: Given 1) Pressure = 110 kPa Volume = 13 L Temperature = 21°C 2) Mass of CH4 = 919 g

Q: Consider the following reaction at 25 °C: 3 NiO(s) +2 NH3(g)→ 3 Ni(s) + N2(g) + 3 H2O(g) If AH° =…

A: The relationship between standard enthalpy (∆H), entropy (∆S) and free energy (∆G) at a particular…

Q: pick the substance and conditions which should have the higher entropy. a)water at 0K b) water at 0C

A: a)water at 0K b) water at 0C

Q: a) For diamond and graphite carbonnanomaterials, which are two allotropes of carbon, would…

A: (a) Carbon is able to form many allotropes (formally formed forms of the same substance) due to its…

Q: For the reaction:                       SO3 (g)  →  SO2 (g)  +  1/2 O2 (g)         the ΔHo is…

A: For the given reaction, standard Gibbs's free energy is calculated as shown in equation (1).…

Q: 3. A reaction has a standard free energy change (G⁰) of -21.6 kJ/mol at 25 ⁰C. a. Is this reaction…

A: Given , The reaction has a standard free energy change (ΔG⁰) of -21.6 kJ/mol at 25 ⁰C.  We have to…

Q: At 3000 K, the partial pressures of CO2, CÓ and O2 are 0.6, 0.4 and 0.2 atm, respectively. Calculate…

A: Given that, Partial pressure of CO2 = 0.6 atm  Partial pressure of CO=0.4 atm  Partial pressure of…

Q: For the reaction CH₂(g) + H₂O(g) → 3H₂(g) + CO(g) AH-206.1 kJ and AS = 214.7 J/K The standard free…

A: ∆G°= ∆H° - T∆S°  If ∆G<0 , reaction is spontaneous  If ∆G>0, reaction is non-spontaneous

Q: Based on the standard free energies of formation, which of the following reactions represent a…

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Q: Rank the following according to DECREASING number of entropy A. 1.32 mol SF6 B. 31.0 g S8…

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Q: 5. For each of the following reactions, write a balanced equation, calculate the standard emf,…

A: For each reaction, we first need to write the balanced equation:a. 2I-(aq) + Hg2+(aq) → I2(s) +…

Q: 23. Predict whether this reaction is product-favored at 25°C by calculating the change in standard…

A: Use Gibbs free energy equation to determine the reaction is spontaneous or non-spontaneous. If delta…