Q: For the process: Z₂(g) →2 Z(g), AH° = +478 kJ. What would be predicted for the sign of ASxn and the…
A: Given reaction: Z2(g) → 2Z(g), ∆H∘ = +478 kJ We have to find the sign of ∆Srxn and the…
Q: 2 AgNO3 (s) + SO2 (g) → Ag2S (s) + 2 NO2 (g) + 2 O2 (g) Is the reaction spontaneous…
A:
Q: Consider these two reactions: Reaction 1: 20F₂(g) → O₂(g) + 2 F₂ (g) AH = -49.4 kJ Reaction 2: N₂(g)…
A: ★ Answer : Reaction 2 is non spontaneous. ★ Explanation :
Q: For each reaction with ΔH = + 187 kJ/mol and ΔS = + 365 J/molK ,at what temperature at which the…
A: Given: ΔH = +187 KJ/mol or +187000 J/mol ΔS = +365 J/molK We have to calculate temperature(T) at…
Q: For a particular chemical reaction DH = 6.8 kJ and DS = –29 J/K. Under what temperature condition is…
A: Gibbs Helmholtz Equation: Is the equation denoted by,…
Q: For a particular reaction, AH = 20.1 kJ and AS = 45.9 J/K. Assuming these values change very little…
A: Applying concept of spontaneity and formula ∆S=∆H /T
Q: Determine if the following reaction is spontaneous at 298K BaCO3(s) ↔ BaO(s) + CO2(g) ΔHf˚ =…
A:
Q: C4H10 (g)+6.5 O2 (g) --> 4CO2 (g) +5H2O (g) favors spontaneous or nonspontaneous?
A: In this question, we will see this reaction is spontaneous or not. You can see details Solution…
Q: Spontaneous Process Q: consider the vaporization of liquid water at 1 atmosphere. 1. Is the process…
A: Spontaneous process :- A process is said to be spontaneous if it takes place by itself without the…
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: 1. Which set of results applies to a reaction that is spontaneous at 250 K but is not spontaneous at…
A: Answer:- This question is answered by using the simple thermodynamics and the spontaneity of the…
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: Calculate the free energy change for this reaction at 25 °C. Is the reaction spontaneous? (Assume…
A: Given information, C3H8( g) + 5 O2( g)-------->3 CO2( g) + 4 H2O( g)ΔH °rxn = -2217…
Q: CCl4 (l) CCl4 (g) At what temperature does the phase change become spontaneous? (Give in…
A: Answer is explained below. For this problem required thermodynamic parameters are as follows:
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: It is determined that a particular chemical reaction has AH°rxn = 105 kJ and As°rxn = 252 JK1.…
A: For spontaneous reaction delta G must be negative....
Q: reaction has AHxn= 533 kJ/mol and ASTxn= -57 J/K•mol. What can be said about this %3D action? The…
A: Answer
Q: The combustion of acetylene is used in welder's torches because it produces a very hot flame: C 2 H…
A: Standard molar enthalpy of carbon dioxide = -393.5 KJ/mol Standard molar enthalpy of water vapor =…
Q: (2)Consider the following reaction at constant pressure. Use the information here to determine the…
A: 1. ∆Ssurr = -∆Hsys/T 2. ∆G = ∆H - T∆S
Q: Consider the following reaction at constant P. Use the information here to determine the value of ΔS…
A: If ∆S comes out to be positive then it would be considered as spontaneous otherwise negative then…
Q: For the reaction 2 NH3 (g) --> N2 (g)+ 3 H2 (g) , ∆H = +92 kJ. Which of the following is true?…
A: The given reaction is, 2 NH3 (g) --> N2 (g)+ 3 H2 (g) , ∆H = +92 kJ ∆H is positive, that means…
Q: For a reaction in which ∆H = 76.2 kJ/mol and ∆S = 422 J/K mol, determine the temperature, in °C,…
A: We have the equation for Gibbs free energy as, ∆G = ∆H-T∆S Where, ∆G = change in Gibbs energy ∆H =…
Q: 1. For the reaction C₂H6 (g) → C₂H4 (g) + H₂ (g) AH° is + 137 kJ/mol and AS° is + 120 J/K mol. Which…
A:
Q: Under what conditions does an increase in temperature turn a nonspontaneous process into a…
A:
Q: For the process O2(g) 2O(g), ΔH° = 498 kJ·mol –1. What would be the predicted sign of ΔS°rxn…
A: Given that :Reaction = O2(g) → 2O(g) ∆H° = 498kJ/mol
Q: Standard molar entropies for CO(g), CO2(g), and O2(g) are 197.9, 214.0, and 205.0 in J/mol K,…
A: Entropy Entropy is the measure of disorder in a reaction. When an amount of energy is added to a…
Q: Can a process be spontaneous at one temperature and nonspontaneous at a different temperature?
A: Thermodynamics can be used to explain the spontaneity of a reaction.
Q: Under what temperature range would the following reaction be spontaneous? N2(g) + 3 H2(g) ⇌ 2…
A: The given problem can be solved by using the formula given below as; ∆G°=∆H° - T∆S°…
Q: At constant pressure, the following reaction is exothermic. 3H2(g) + N2(g) + NH3(g) Reaction (as…
A:
Q: Consider the following reaction: 2 AB2 (g) ⟶ 2 AB(g) + B2(g) ΔHo= +480.0 kJ/mol a.) Do…
A: Given Chemical Reaction is - 2 AB2 (g) ⟶ 2 AB(g) + B2(g) ΔH° = +480.0 kJ/mol Here the…
Q: What are the signs of ΔH, ΔS, and ΔG for the spontaneous conversion of a crystalline solid into a…
A: Conversion of a crystalline solid into gas requires addition of energy. A reaction that absorbs…
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: For the reaction below ΔG° = +33.0 kJ, ΔH° = +92.2 kJ, and ΔS° = +198.7 J/K. Estimate the…
A: The given data : ΔG° = 33.0 kJ ΔH°= +92.2 kJ ΔS°= +198.7 J/K To determine : The temperature of the…
Q: For a particular chemical reaction, ΔH = 4.3 kJ and ΔS = –19 J/K. Under what temperature condition…
A:
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: For a given reaction, dH = 32 kJ/mol and dS = 117 J/mol. At approximately what temperature would…
A: The spontaneity of the reaction can be determined by the change in Gibbs free energy. The relation…
Q: For each reaction with ΔH = + 245 kJ/mol and ΔS = + 48 J/molK ,at what temperature at which the…
A: The question is based on the concept chemical thermodynamics. We have been given entropy &…
Q: Consider the following reaction at constant P. Use the information here to determine the value of ΔS…
A: the reaction is said to be spontaneous when ΔG° is negative. It ΔG° is positive, the reaction is…
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: 6. For each reaction below, determine the sign of AH and AS. Also state under what conditions the…
A: The spontaneity of any reaction is known with the help of sign of ΔH and ΔS. ΔG=ΔH-T ΔSSpontaneous…
Q: Consider the reaction for the decomposition of carbon tetrachloride gas:CCl4(g)¡C(s, graphite) + 2…
A: (a) The given reaction is, CCl4g→Cs,graphite+2Cl2g ∆H=+95.7 kJ∆S=+142.2 J/KT=25°C=25+273K=298 K
Q: Question attached
A: A reaction is considered as spontaneous when the Gibbs free energy of the reaction (∆Gorxn) is…
Q: iven the following table of thermodynamic data, complete the following sentence. Substance ΔH°f…
A: Given : We have to predict which is condition is correct for given data.
Q: For the process O2(g) 2O(g), ΔH° = 498 kJ·mol –1. What would be the predicted sign of ΔS°rxn…
A:
Q: Consider the following reaction: CaCO 3(s) CaO (g) +CO 2(g) For this reaction, delta S = +158.9…
A: For a spontaneous reaction, deltaG should be negative. From the given delta H and delta S values,…
Q: 1. From the values of AH and AS, predict which of the following reactions would be spontaneous at…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Extraction of DNA involves the use of a 1 M phosphate buffer (1-liter volume) having the hydrogen ion concentration of 6.165950019 x 10-9 M. Three pKa of phosphoric acid are available Concentrated phosphoric acid (85% w/w; Sp. Gr. = 1.70; MW = 98 g/mol) Sodium dihydrogen phosphate monohydrate (MW = 138g/mol) Sodium biphosphate heptahydrate (MW = 268g/mol) Tribasic sodium phosphate monohydrate (MW = 182 g/mol) Sodium hydroxide pellets (40 grams/mol) Question: What is the pH of the solution? (answer in two decimal places) How much of the weak acid component should be used? (Note for answer: Round to the nearest hundredth and include the unit such as "grams or milliliters"; Ex. 100.00 grams or 100.00g for weight & 100.00 milliliters or 100.00 mL for volume) Question: What is the suitable buffer component to be used? (Note for the answer: Separate the two components with “and”; Ex: Ammonia and Ammonium chloride) Question: How much of the salt component should be used?…Given C6H12O2 chemical formula. chemical shift , intergration, multiplicity and interpretation needed.Calculate the Ksp for Ni(OH)2 Ni(OH)2(s) + 2 e- ⟶ Ni(s) + 2OH-(aq); Eo = -0.720 VNi2+(aq) + 2 e- ⟶ Ni(s); Eo = -0.250 V 7.56x1015 1.15x10-8 1.70x10-33 1.32x10-16
- Using data in Appendix E, calculate the standard emf foreach of the following reactions:(a) H21g2 + F21g2 ¡ 2 H+1aq2 + 2 F-1aq2(b) Cu2+1aq2 + Ca1s2 ¡ Cu1s2 + Ca2+1aq2(c) 3 Fe2+1aq2 ¡ Fe1s2 + 2 Fe3+1aq2(d) 2 ClO3-1aq2 + 10 Br-1aq2 + 12 H+1aq2 ¡ Cl21g2 +5 Br21l2 + 6 H2O1l2El poder de rotación específico de la sacarosa a 20 °C es [alfa]D20 = +66,53 grados/(dm g mL-1). ¿Cuál es su poder de rotación molar, expresado en grados/(dm mol L-1)? (Peso molecular de la sacarosa: 342,3). 1). 5.14 2). 22.77 3). 194.4 4). 22773It is estimated that the net amount of carbon dioxide fixed byphotosynthesis on the landmass of Earth is 5.5 * 1016 g>yrof CO2. Assume that all this carbon is converted into glucose.(a) Calculate the energy stored by photosynthesis onland per year, in kJ. (b) Calculate the average rate of conversionof solar energy into plant energy in megawatts, MW11W = 1 J>s2. A large nuclear power plant produces about103 MW. The energy of how many such nuclear power plantsis equivalent to the solar energy conversion?Integrative Exercises
- 4 (a) Evaluate four characteristics, and their corresponding considerations of design associated to them for the following reaction: C10H20(liq) + H2(g) = C10H22(liq) ∆Ĥ R < 0 C10H22(liq) + H2(g) = C10H24(liq) ∆Ĥ R < 0The concentration of Na in plant materials are determined by flame atomic emission. The material to be analyzed is prepared by grinding, homogenizing, and drying at 103 ºC. A sample of approximately 4 g is transferred to a quartz crucible and heated on a hot plate to char the organic material. The sample is heated in a muffle furnace at 550 ºC for several hours. After cooling to room temperature the residue is dissolved by adding 2 mL of 1:1 HNO3 and evaporated to dryness. The residue is redissolved in 10 mL of 1:9 HNO3, filtered and diluted to 50 mL in a volumetric flask. The following data are obtained during a typical analysis for the concentration of Na in a 4.0264-g sample of oat bran. Calculate the weight percent of Na in the plant sample.Calculate delt g for Pbl2(s) + Pb2+(aq) +2I-(aq) T= 25C Kp= 8.7x10-9
- It is estimated that the net amount of carbon dioxide fixed byphotosynthesis on the landmass of Earth is 5.5 x 1016 g/yrof CO2. Assume that all this carbon is converted into glucose.(a) Calculate the energy stored by photosynthesis onland per year, in kJ. (b) Calculate the average rate of conversionof solar energy into plant energy in megawatts, MW11W = 1 J/s2. A large nuclear power plant produces about103 MW. The energy of how many such nuclear power plantsis equivalent to the solar energy conversion?asdbas14Pls helo ASAP. Pls help in all asked questions.