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Calculate AE when 70.6 grams of hydrogen reacts completely at constant pressure and 300. K. N,...
When 20.00 moles of H2(g) reacts with 10.00 mol of O2(g) to form 20.00 mol of H2O(1) at 25°C and a constant pressure of 1.00 atm. If 1366 kJ of heat are released during this reaction, and PAV is equal to -74.00 kJ, then AH° = +1366 kJ and AE = +1440 kJ. O AH° = +1366 kJ and AE° = +1292 kJ. O AH° = -1366 kJ and AE° = -1292 kJ. O AH° = -1366 kJ and AE°...
Calculate ΔΕ when 790 constant pressure. grams of CO2 are formed in this combustion reaction at 350" K and C10H8 (s) + 1202 (g)-10CO2 (g) + 4H20 (1) ΔΗ-5157 ki Check the states of matter in the balanced reaction. Use 44.01 g/mol as the molar mass of CO 2 2 Attempts Submit Use 5 sig figs kJ
From AHⓇ and AS 11. Hydrogen reacts with nitrogen to form ammonia (NH) according to the reaction 3H:(g) +Nz() 5 2NH,(g) The value of Alºis -92.38 kJ/mol, and that of AS is -198.2 J/mol K. Determine AG at 25°C. a. +5.897 x 109 kJ/mol d. -16,66 kJ/mol b. +297.8 kJ/mol +49.5 kJ/mol c.-33.32 kJ/mol Free Energy, Entropy, Enthalpy 12. A reaction with a low enthalpy of reaction value is not spontaneous at low temperature but becomes spontaneous at high temperature....
When excess Cl2 at constant pressure reacts with 0.300 mol of CH4(g) 295 kJ of energy evolves. Calculate the value of ΔH for this reaction, as written. CH4(g) + Cl2(g) → CHCl3(l) + H2(g) ΔH = ? a) -1970 kJ b) -1770 kJ c) +1970 kJ d) -983 kJ e) +1770 kJ
Part A Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction. 2 H2O2() + 2 H2O(1) + O2() AH =-196 kJ Calculate the value of (kJ) in this exothermic reaction when 3.00 g of hydrogen peroxide decomposes at constant pressure? -1.73 x 104 kJ -0.0289 kJ -8.65 kJ -17.3 kJ 1.92 kJ Submit Reguest Answer
1. A degreasing agent, tetrachloroethylene, is produced in the reaction CH4(g) +4 HCl(g) +2 02(g) → C2C14(1) + 4H2O(1) AH° (kJ/mol): 52.26 -92.31 - 285.8 a) determine AH°for CCl4(1) AH' - 878.5 kJ a) AH° for C,CL(1) = b) How much heat (kJ) would be evolved when 7.5 kg of CH4(g) reacts completely (with stoichiometric amounts of HCl and O2)? b) heat, do = c) Using the equation for work done by/on the system; w=-P AV, calculate the amount of...
15) For a particular process that is carried out at constant pressure. A AE = 140 kJ and AH = 170 kJ. C) AE = 110 kJ and AH = 140 kJ. 140 kJ and w*-30 kl. Therefore, B) AE = 170 kJ and AH = 140 kJ. D) AE - 140 kJ and AH110 kl. 16) How much energy is evolved during the formation of 296 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) →...
Calculate the work done (in kilojoules) when a 2.00 L hydrogen balloon explodes when it reacts with excess oxygen in the air at 1.04 atm of pressure. Assume a complete reaction occurs. 2 H2(g) + O2(g) --> 2 H2O(g) 105 kJ 1.04 kJ 2.08 kJ 0.105 kJ
A 1.40-mol sample of hydrogen gas is heated at constant pressure from 304 K to 426 K. (a) Calculate the energy transferred to the gas by heat. kJ (b) Calculate the increase in its internal energy. kJ (c) Calculate the work done on the gas. kJ
A 1.90-mol sample of hydrogen gas is heated at constant pressure from 306 K to 416 K. (a) Calculate the energy transferred to the gas by heat. kJ (b) Calculate the increase in its internal energy. kJ (c) Calculate the work done on the gas. kJ