Given: 4 NO_2(g) + O_2 (g) rightarrow 2N_2O_5(g) DeltaH degree = - 110.2 kJ find Delta...
Given: 4 NO_2(g) + O_2(g) rightarrow 2 N_2O_5(g) delta H degree = -110.2 kJ find delta H degree for N_2O_5(g) rightarrow 2 NO_2(g) + 1/2 O_2(g) HBr, HCl, HCIO_4, KBr, and NaCl are all classified as Selected Answer: strong electrolytes. Correct Answer: strong electrolytes. What is the empirical formula for ethyl fluoride if the compound contains 49.97% carbon, 10.51% hydrogen, and 39.52% fluorine by mass? Selected Answer: C_4 H_10 F_4 Correct Answer: C_2H_5F Which of the following represent isotopes? A:...
Using the following reactions: N_2(g) + O_2(g) rightarrow 2 NO(g) Delta H = 181 kJ times 2 NO(g) + O_2 rightarrow 2 NO_2(g) Delta H = -113 kJ times 2 N_2O(g) rightarrow 2 N_2(g) + O_2(g) Delta H = -163 kJ times Determine the enthalpy change for the reaction: N_2O(g) + NO_2(g) rightarrow 3 NO(g) Delta H =
For the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) Delta G degree = -23.6 kJ and Delta S degree = -198.7 J/K at 345 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 345 K. The standard enthalpy change for the reaction of 2.30 moles of N_2(g) at this temperature would be kJ. For the reaction 2 H_2O_2(l) rightarrow 2 H_2O(l) + O_2(g) Delta G degree = -236.9 kJ and Delta H degree =...
Consider the production of dinitrogen pentoxide (N_2O_5) by the reaction O_3(g) + 2NO_2(g) rightarrow N_2O_5(g) + O_2(g) The rate law is given by d[N_2O_5]/dt = k[O_3][NO_2] Which of the following expressions is equivalent to d[NO_2]/dt? k[O_3] [NO_2]^1/2 -2k [O_3][NO_2] K[O_3][NO_2] -(k/2) [O_3][NO_2]
The rate constant for the first-order decomposition of N_2O_5 in the xeactron2 N_2O_5(g) rightarroe 4 NO_2(g)+O_2(g) is k_I = 3.38 times 10^-5 s^-1 at 25 degree C. What is the half-life of N205? What will be the pressure, initially 500 Torr, after 50 20 min after initiation of the reaction?
Consider the reaction 2NO_2(g) rightarrow N_2O_4 (g). Using the following data, calculate Delta G degree at 298 K. Delta G degree (NO_2(g)) = 51.84 kJ/mol, Delta G degree (N_2 O_4 (g)) = 98.28 kJ/mol. Calculate Delta G at 298 K if the partial pressures of NO_2 and N_2O_4 are 0.37 atm and 1.62 atm, respectively. Express your answer using one significant figure.
For the following reaction at 25.0 degree C, 2 C(s) + O_2(g) rightarrow 2 CO(g) calculate Delta S degree_univ given Delta S degree_sys = 179.1 J/K and Delta H degree_sys = -221.1 kJ.
Use the standard reaction enthalpies given below to determine Delta H_rxn degree for the following reaction: 2 S(s) + 3 O_2(g) rightarrow 2SO_3(g) Delta H_rxn degree Given: SO_2(g) rightarrow S(s) + O_2(g) Delta H_rxn degree = +296.8 kJ 2SO_2(g) + O_2(g) rightarrow 2 SO_3(g) Delta H_rxn degree = -197.8 kJ Name those compounds? Li_2SO_3 Al_2S_3 P_2O_3 COBr_2-6H_2O
Consider the following reaction: 2Ca(s) + O_2(g) rightarrow 2CaO(s) Delta H_rxn = -1269.8 kJ; Delta S_rxn degree = -364.6 J/K Assume that all reactants and products are in their standard states. Part A Calculate the free energy change for the reaction at 28 degree C. Part B Is the reaction spontaneous? spontaneous nonspontaneous
Use the standard reaction enthalpies given below to determine Delta H degree _rxn for the following reaction: 2 S(s) + 3 O_2(g) rightarrow 2 SO_3(g) Delta H degree _rxn = ? Given: SO_2(g) rightarrow S(s) + O_2(g) Delta H degree _rxn = +296.8 kJ 2 SO_2(g) + O_2(g) rightarrow 2 SO_3(g) Delta H degree rxn = -197.8 kJ Show all your work!