
need help understanding #15 15. Given the reaction 2 NO(g) + Cl2(g) → 2 NOCI(g) AH...
Nitrosyl chloride, NOCI, decomposes to form nitrogen monoxide gas and chlorine gas according to 2NOCI(g) = 2NO(g) + Cl2(g) Assuming that we start with no moles of NOCI(g) and no NO(g) or Cl2(g), derive an expression for K, in terms of the equilibrium value of the extent of reaction, Šeg, and the pressure p. Given that Ky = 2.00 x 10-4, calculate Šeg/no, when p = 0.080 bar. What is the new value of Šeg/no at equilibrium when p =...
Consider the following reaction: 2 NO(g) + Cl2(g) = 2 NOCI() The reaction is at equilibrium at 125 °C with PNo = 1.66 bar, PcI2 = 0.830 bar, and PNoci = 1.09 bar. (a) Calculate the value of the equilibrium constant of this reaction at 125 °C. (b) Calculate the value of AGº of this reaction at 125 °C. Give you answer with 3 significant figures and in the units kJ/mol. (c) Given the following additional information and assuming that...
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) AH = -1652 kJ (a) How much heat is released when 3.54 mol iron are reacted with excess O2? Ok] (b) How much heat is released when 1.48 mol Fe2O3 is produced? CJ) (c) How much heat is released when 2.50 g iron are reacted with excess O2? DJ (d) How much heat is released when 12.6 g Fe and 1.02 g O2 are reacted? CkJ
6. In this experiment 2.00 mols of NOCI are placed in a 1.00L equilibrium is achieved, nitrogen monoxide NO and chlorine gas equilibrium concentration of NO is 0.66 M. Calculate Kc for this placed in a 1.00 L flask @ 298 K. After ad chlorine gas Cl, form. The alculate Kc for this equilibrium reaction: ? 2 NOCI (g) = 2 NO(g) + Cl2 (8) 3. eaction vessel is charged with hydrogen iodide and heated in a sealed tube to...
15. The AH value for the reaction KO,(g ) +Hg() HgO(s ) is -90.8 kJ. How much heat is released when 66.9 g Hg is reacted with oxygen? A) 0.333 kJ B) 6.07 x 103 kJ C) 30.3 kJ BAC D) 90.8 kJ E) none of these
At what temperature will a 13.7 g Cl2 sample exert a pressure of 0.993 bar when confined in a 7.50L container? It is found that 6.00 g of potassium metal reacts with excess water to release 29.8 kJ of heat. This means that, for the reaction: 2K(s) + 2H2O(l) à 2KOH(aq) + H2(g) What is the enthalpy of reaction per mole of potassium metal? 2. The overall reaction in a commercial heat pack can be represented as: 4Fe(s) + 3O2(g)...
Fill in the Blanks Given this balanced chemical reaction, 4 HCl(g) + O2(g) +2H20(0) + 2 C12(e) AH reaction=-202.4 kJ (give answer in decimal notation, i.e. 234,000) a. How many J (joules) of heat are released when 2.50 moles of HCl react with excess oxygen gas? b. How many moles of HCl are there in 89.3 g of HCl? c. How many kJ of heat are released when 89.3 g of HC react with excess O2? (Enter your answers as...
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2. Reaction: 2 NOCI (g) 2 NO (g) +Cl2(g) Its rate constants are 9.3x 106 s1 at 77 C and 6.9 x 104 s1 at 127 C, respectively. (a) Calculate the activation energy Ea for this reaction. (b) Calculate eER at 77 'C and 127 C, respectively. (c) What is the rate constant at 200 °C? (30 points)
The overall reaction in commercial heat packs can be represented as the reaction below. 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s), ΔH = -1652 kJ (a) How much heat is released when 4.23 mol iron is reacted with excess O2? (b) How much heat is released when 1.48 mol Fe2O3 is produced? c) How much heat is released when 1.34 g iron is reacted with excess O2? (d) How much heat is released when 13.10 g Fe and 2.05...
The overall reaction in a commercial heat pack can be represented as 4Fe(s) + 302(g). 2Fe,03(s) -1652 kJ a. How much heat is released when 4.80 moles of iron are reacted with excess O2? Heat kJ b. How much heat is released when 1.00 mole of Fe2Os is produced? Heat = kJ c. How much heat is released when 1.70 g iron is reacted with excess O2? Heat kJ d. How much heat is released when 10.6 g Fe and...