Consider the reaction 2 NO2(g)  N2O4(g) . (a) Using Gf N2O4(g) = 97.79 kJ/mol and Gf NO2(g) = 51.3 kJ/mol, calculate G° at 298 K.  kJ (b) Calculate G at 298 K if the partial pressures of NO2 and N2O4 are 0.20 atm and 1.65 atm, respectively.

Q: Calculate the change in E when 836g of CO2 sublimes at -78.5 C CO2 (s) -> CO2 (g) ΔH= +26 kJ

A:

Q: Synthetic diamonds are made under conditions of high temperature (2000 K) and high pressure (1010…

A: Given, Synthetic diamonds are made under conditions of high temperature (2000 K) and high pressure…

Q: Adding 1.56 g of K2SO4 to 6.00 mL of water at 16.2ºC causes the temperature of the solution to drop…

A: Given : Mass of K2SO4 added = 1.56 g Volume of water = 6.00 mL Drop in the temperature of initial…

Q: Hot packs used by skiers use the crystallization of sodium acetate from a concentrated solution.…

A: Enthalpy change is defined as the amount of heat released or absorbed in a chemical reaction. It is…

Q: Given the reaction: NO2(g) NO(g) + O2(g) (H = +62 Kj), if the temperature is increased, the…

A: Given ;- NO2(g) <-----> NO(g) + O2(g)  H = +62 kJ  statement : if the temperature is…

Q: Calculate the boiling point of methanol CH3OH from the thermo data provided. The reaction is:…

A:

Q: As O2(l) is cooled at 1 atm, it freezes at 54.5 K to form solid I. At a lower temperature, solid I…

A: The expression that will be used to determine the temperature at which solids I and II are in…

Q: at what temperature will this reaction be exactly at equilibrium?

A: Enthalpy change (∆Ho)=-162.2 kJ =-162.2  X 103J Entropy change (∆So)=104.2 J/K ∆Go=0 at equilibrium…

Q: The reaction                         2 NO(g)   ⇆  N2O4(g) occurs at 25oC under standard state…

A:

Q: 4. For the reaction, diamond ⇒ graphite, AG = -2.87 kJ/mol at 298 K. What additional information do…

A: Given: For the reaction,  Diamond <----> Graphite ∆Go = -2.87kJ/mol

Q: Consider this reaction: 2HCI(aq) + NazCO3(s) → CO2(g) + H2O(1) + 2NACI(aq) AS° = 267.00J/K.mol; AH°…

A: Given: ΔSo > 0 ΔH < 0

Q: Consider the following reaction: SO:{3) + CaO(s) = CasO4ls). If AG°is - 345 kJ/mol for this reaction…

A: Given, ∆G ° = -345 KJ/mol  Temperature = 298 K  Keq = ?

Q: Theoretically, one can obtain zinc from an ore containing zinc sulfide, ZnS, by the reaction ZnS(s)…

A: Answer :-  a) ∆H° = 206.0 (kJ) b) ∆S° = 15.7 (J/K)  c) ∆G° = 201.3 (kJ)  d) Since, ∆H°, ∆S° and ∆G°…

Q: Above what temperature (in ºC) does the reaction with H' of 192 kJ/mol and S’ of 622 J/mol·K become…

A:

Q: A 2.5 L cylindrical tank at 1 atm contains a 15.0 g mass of gaseous propyl alcohol (assume ideal gas…

A: We have to calculate entropy change of First process i.e for gaseous propyl alcohol. Given : 1 atm =…

Q: A 22.4 g piece of metal (C = 0.326 J/g oC) initially at 12 oC is placed in 35.9 g of water initially…

A:

Q: For the following reaction at 25°C I2(g) + Cl2(g) 2IC1 (g) Ap° = -26.9 kJ and As° - 11.3 J/K.…

A:

Q: The addition of 121  g potassium fluoride to 591  mL of water (d = 1.00 g/mL) causes the temperature…

A: The mass of solution is calculated as shown,

Q: For a particular reaction at 206.1 °C, AG = -1146.96 kJ/mol, and AS = 998.08 J/(mol · K). Calculate…

A: In this question we have to tell the value of delta G at -104.8°C .

Q: Calculate the temperature of the following reaction,  If ΔGrxn° = -29.22 kJ/mol,  ΔH°= 9.12 kJ/mol…

A:

Q: Consider the following rection:             2 A(g) + B2(g) ⇌  2 AB(s)            If Kc for the…

A: We have to use the following formula to calculate Kc at 1,844.9 oC lnKc'Kc=∆HoRT2-T1T1T2

Q: For the following questions, use the reaction for the formation of C2H4 (g) from its elements C (s)…

A: Relationship between standard free energy change and equilibrium constant The free energy…

Q: Determine ΔH, q, w, and ΔE at 298 K and 1 atm pressure for the reaction of 9.348 g of NH3(g) with…

A: Enthalpies of formation of NH3(g), HCl(g), and NH4Cl(s), which are -46.11 kJ/mol, -92.31 kJ/mol, and…

Q: Calculate the standard free-energy change for the formation of NO(g) from N2(g) and 02(g) at 298 K:…

A: Given:

Q: A stainless steel lawn mower blade with a mass of 0.950 kg is being forged. During the process, the…

A: Heat released by steel is equal to heat gain by water.

Q: What is K for a reaction if /\G° =-178.6 kJ/mol at 25 °C (or 298 K)? (R = 8.314 J/mol • K)

A: Information of question

Q: A particular reaction has a ΔHo value of -141. kJ and ΔSo of -104. J/mol K at 298 K. Calculate ΔGo…

A: We are given :648. K Change in enthalpy (ΔHo)  =   -141. kJ change in entropy (ΔSo)  = -104. J/ K =…

Q: (BFN = (8)F0÷ + (3%OS= (3FOS NO(g) 50(g) AH° = -90.2 kJ (a) (b) AH° = +98.9 kJ Using Le Chatelier's…

A: Exothermic reaction are those in which heat is released and endothermic reaction are those in which…

Q: Given AH = -19.4 kJ/mol and AS° = +92.3 J/mol K, determine AG for the phase change CO2(g) → CO₂(aq)…

A:

Q: ΔGfo

A:

Q: 15. How much energy is required to decompose 1228 g of PC13, according to the reaction below? The…

A: Mass of PCl3 = 1228 g Molar mass of PCl3 = 137.32g/mol Reaction = 4PCl3(g)  --->  P4(s) + 6Cl2(g)…

Q: Consider a 1.2 mol block of iron with a specific heat capacity of 0.44 J/g°C. The atomic mass of Fe…

A: The amount of heat required to raise the temperature of the sample is given by: q =m c∆Tq is the…

Q: 1. You have the following reaction at 25°C S(s) + 24F,(9) → 8SF,(g) a. Calculate AG The AGiormation…

A: The given reaction is- S8 (s) + 24F2 (g)→8SF6 (g)   a) The ∆Grxn is calculated as-…

Q: A particular reaction has a ΔHo value of -169 kJ and ΔGo of -156 kJ at 524 K. Calculate ΔSo at 524 K…

A: The relation between ΔHo, ΔGo and ΔSo is shown below. ∆G∘=∆H∘-T∆S∘

Q: 1. You have the following reaction at 25°C Sg(s) + 24F2(g) 8SF,(g) a. Calculate AG- The AGarmation…

A: Given: The reaction is as follows: S8g+24F2g→8SF6g ∆Gformation=-1296 KJ/mol. ∆Hformation=-1209…

Q: A certain reaction has ∆H ° = +23.7 kJ and ∆S° = +52.4 J>K. (a) Is the reaction exothermic or…

A: ∆H ° = +23.7kJ If for any chemical reaction ∆H ° is positive, the reaction will be endothermic…

Q: For the reaction: ZnO(s) → Zn(s) + O₂ (g) AH +111.00kJ and AS = +153.01 J/K. Is there a temperature…

A: Equilibrium temperature of the reaction is to be determined.

Q: Use the thermodynamic data below to answer the following questions regarding this chemical reaction:…

A: Thermodynamics is branch of science that involves the study of heat, work, temperature and energy.…

Q: Consider the following reaction: 2C(s) + 2H2(g) → C2HA(g); A,H° = 52.47 k); A,S° = -53.5 J/K at 298…

A: Given equation: 2C +2H2 →C2H4 ∆G=∆Go+RTlnKeq here ∆Go=∆Ho-T∆S0 ∆Go=52.47 x 1000 -298(-53.5)…

Q: CaCl2 (MM = 110.98 g/mol) is used as road salt in the winter to minimize the accumulation of ice on…

A: On adding dissolving CaCl2, the temperature will change from initial value. Heat absorbed by water…

Q: phorus oxychloride (POCl3) is a chlorinating agent that is frequently used in organic chemistry

A: We have to tell whether reaction is spontaneous

Q: What is the lowest temperature at which the reaction of C(s) with H2O(g) to produce H2(g) and CO(g)?…

A: The lowest temperature would be 981..3153°C.

Q: What is the ΔH°vap of a liquid that has a vapor pressure of 624 torr at 85.2°C and a boiling point…

A: The ΔH°vap of a liquid is to be determined that has a vapor pressure of 624 torr at 85.2°C and a…

Q: A key step in the production of sulphuric acid is the oxidation of SO2(g) + O2(g) → 2SO3(g) At 98K,…

A: Given reaction at 298 K;. SO2(g) + O2(g) → 2SO3(g)   ∆G°sys = -500.51 KJ    ∆H°sys = -494.61 KJ…

Q: The forward reaction of the following equilibrium reaction is favored by: 2NO(g) + O2(g) 2NO2(g) +…

A: Given, 2NO(g) + O2(g) <-> 2NO2(g) + Energy Moles of a sample = 3.00 moles Amount of energy…

Q: Consider the following reaction at equilibrium:  2NH3 (g) ↔ N2 (g) + 3H2 (g) ΔH° =46.1 kJ at 298K…

A: Le-Chatelier's principle: If a system is in equilibrium is subjected to a change in any of the…

Q: Given ΔΗ° = +257.7 kJ/mol and AS° = +213.7 J/mol K, determine AG° for the reaction 3 N₂(g) + 2 O3(g)…

A: