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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
) Calculate the
ΔH value heat for the following reaction: Ag2S(s) + 2 HCl(g) --> 2 AgCl(s) + H2S(g)
ΔH = ? kJ/mol Solve by writing formation equations for each reactant and product and using the ΔH values for each.
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- Find the ΔH for this reaction : 3H2(g) +O3(g) --> 3H2O(g) Given the two following pieces of information: 2H2(g) + O2(g) --> 2H2O(g) ΔH=-515.7 kJ/mol 3O2(g) --> 2O3(g) ΔH=286.3 kJ/molarrow_forwardUse the standard reaction enthalpies given below to determine AH° rxn 4 SO3(g) →4 S(s) + 602(g) AH°rxn = ? Given: SO2(g) →S(s) + O2(8) 25O2(g) + O2(g) →2SO3(g) 1583 kJ -494.6 kJ -791.4 kJ -293.0 kJ -692.4 kJ AH rxn = +296.8 kJ ΔΗ°, rxn = -197.8 kJ for the following reactionarrow_forward3. Draw and label a PE diagram for the reaction 2 NOBr (g->2 NO(g) + Br2(g) + 50 kJ, in which Ea(f) = 30 kJarrow_forward
- Determine the ΔH of formation for sulfur trioxide gas if: 2 SO2 (g) + O2 (g) --> 2 SO3 (g) ΔH = -300 kJ SO2 (g) --> O2 (g) + S (s) ΔH = 200 kJ The standard state of sulfur is S (s). -500 kJ/mol -400 kJ/mol - 350 kJ/mol +200 kJ/mol +100 kJ/molarrow_forwardDetermine the ΔH of formation for sulfur trioxide gas if: 2 SO2 (g) + O2 (g) --> 2 SO3 (g) ΔH = -300 kJ SO2 (g) --> O2 (g) + S (s) ΔH = 200 kJ The standard state of sulfur is S (s). - 350 kJ/mol -500 kJ/mol +200 kJ/mol +100 kJ/mol -400 kJ/molarrow_forward18. Calculate the heat of reaction at constant volume for 5.00 g C3H8 ,considering the following chemical reaction: C3H8 (g) + O2(g) --------------------> CO2 (g) + H2O (g) heat of standard formation: O2 = 0.00 kJ / mole, H2O (g) = -245 kJ / mole, CO2 = -318 kJ/mole and C3H8 = -438 kJ / mole C3H8 = 44.09 g/mole Temperature is 33 oC a. -789 kJ b. -212 kJ c. 412 kJ d. -169 kJarrow_forward
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