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10 Nov 2019

(explain and show math)

a. -198 kJ

b. -187 kJ

c. -254 kJ

d. -142 kJ

Consider the following reaction: 2 SO2 (g) + O2 (g) 2 SO3 (g) Using the table below, calculate delta Grxn degree at 25 degree C

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Nelly StrackeLv2

7 Nov 2019

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Related questions

Given that ÎH^o for the thermochemical equation

2 SO₂(g) + O₂(g) â 2SO₃(g)

is â 198 kJ, what is the enthalpy change for the decomposition of 1 mole of SO₃ to give O₂ and SO₂, all in the gas state?

Method: Write down the equation of the reaction required (decomposition of SO₃ to give O₂ and SO₂):
SO₃(g) â SO₂(g) + Â½O₂(g)
Compare this equation with the one for which the thermodynamic information is available, and decide what operations are necessary to make them identical.
If you reverse a reaction, you must change the sign of ÎH^o.
If you multiply a reaction through by a factor, you must multiply ÎH^o by that factor also.

Select one:

a. + 99 kJ

b. - 99 kJ

c. - 198 kJ

d. + 198 kJ

e. 0 kJ

At constant pressure, the combustion of 10.0 g of C2Hg(g) releases 518 kJ of heat. What is AH for the reaction given below? 2 C2H6(g) +- 7 O2(g) rightarrow 4 CO2(g) + 6 H2O(l). -779 kJ -1560 kJ -86.1 kJ -3120 kJ Use the information provided to determine Delta H degree r times n for the following reaction: CH4(g) + 3 Cl2(g) rightarrow CHCI3(I) + 3 HCI(g) Delta H degree r times n = ? -217 kJ -335 kJ +662 kJ +117 kJ -151 kJ Choose the reaction that illustrates Delta H degree f for NaHCO3. Na(s) + 2 H(g) + C(s) + 3 O(g) rightarrow NaHCO3 (s) Na(s) + H2(g) + C(s) + O2(g) rightarrow NaHCO3 (s) Na+(aq) + H2O (I) + CO2 (g) rightarrow NaHCO3 (s) Na(s) + 1/2 H2(g) + C(s) + 3/2 O2(g) rightarrow NaHCO3 (s) Na+(aq) + HCO3 -1 (aq) rightarrow NaHCO3 (s) Use the standard reaction enthalpies given below to determine Delta H degree r times n for the following reaction: 4 SO3(g) rightarrow 4 S(s) + 6 O2(g) Delta H degree r times n = ? Given: SO2(g) rightarrow S(s) + O2(g) Delta H degree r times m = +296.8 kJ 2 SO2(g) + O2(g) rightarow 2 SO3(g) Delta H degree r times n = -197.8 kJ -494.6 kJ -791.4 kJ 1583 kJ -293.0 kJ -692.4 kJ Which of the following statements is TRUE? State functions do not depend on the path taken to arrive at a particular state. Energy is neither created nor destroyed, excluding nuclear reactions. Delta Hr times r can be determined using constant pressure calorimetry. Delta H r times n can be determined using constant volume calorimetry. All of the above are true. How much energy is evolved during the formation of 98.7 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) rightarrow Al2O3(s) + 2 Fe(s) Delta H degree r times n = 852 kJ 01.51 times 103 kJ 241 kJ 0482 kJ 4.20 x 103 kJ 753 kJ Given w = 0, an endothermic reaction has the following. - Delta H and + Delta E Delta H and -Delta E - Delta H and -Delta E + Delta H and +Delta E Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat? 10.0 g ethanol, Celharol = 2.42 J/g degree C 10.0 g Ag, CAg = 0.235 J/g degree C 10.0 g Au, CAu = 0.128 J/g degree C 10.0 g Fe, CFe = 0.449 J/g degree C 10.0 g H2O, CHO = 4.18J/g degree C Which of the following processes is endothermic? a hot cup of coffee (system) cools on a countertop the vaporization of rubbing alcohol the chemical reaction in a "hot pack" often used to treat sore muscles the freezing of water the combustion of propane

Show transcribed image text At constant pressure, the combustion of 10.0 g of C2Hg(g) releases 518 kJ of heat. What is AH for the reaction given below? 2 C2H6(g) +- 7 O2(g) rightarrow 4 CO2(g) + 6 H2O(l). -779 kJ -1560 kJ -86.1 kJ -3120 kJ Use the information provided to determine Delta H degree r times n for the following reaction: CH4(g) + 3 Cl2(g) rightarrow CHCI3(I) + 3 HCI(g) Delta H degree r times n = ? -217 kJ -335 kJ +662 kJ +117 kJ -151 kJ Choose the reaction that illustrates Delta H degree f for NaHCO3. Na(s) + 2 H(g) + C(s) + 3 O(g) rightarrow NaHCO3 (s) Na(s) + H2(g) + C(s) + O2(g) rightarrow NaHCO3 (s) Na+(aq) + H2O (I) + CO2 (g) rightarrow NaHCO3 (s) Na(s) + 1/2 H2(g) + C(s) + 3/2 O2(g) rightarrow NaHCO3 (s) Na+(aq) + HCO3 -1 (aq) rightarrow NaHCO3 (s) Use the standard reaction enthalpies given below to determine Delta H degree r times n for the following reaction: 4 SO3(g) rightarrow 4 S(s) + 6 O2(g) Delta H degree r times n = ? Given: SO2(g) rightarrow S(s) + O2(g) Delta H degree r times m = +296.8 kJ 2 SO2(g) + O2(g) rightarow 2 SO3(g) Delta H degree r times n = -197.8 kJ -494.6 kJ -791.4 kJ 1583 kJ -293.0 kJ -692.4 kJ Which of the following statements is TRUE? State functions do not depend on the path taken to arrive at a particular state. Energy is neither created nor destroyed, excluding nuclear reactions. Delta Hr times r can be determined using constant pressure calorimetry. Delta H r times n can be determined using constant volume calorimetry. All of the above are true. How much energy is evolved during the formation of 98.7 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) rightarrow Al2O3(s) + 2 Fe(s) Delta H degree r times n = 852 kJ 01.51 times 103 kJ 241 kJ 0482 kJ 4.20 x 103 kJ 753 kJ Given w = 0, an endothermic reaction has the following. - Delta H and + Delta E Delta H and -Delta E - Delta H and -Delta E + Delta H and +Delta E Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat? 10.0 g ethanol, Celharol = 2.42 J/g degree C 10.0 g Ag, CAg = 0.235 J/g degree C 10.0 g Au, CAu = 0.128 J/g degree C 10.0 g Fe, CFe = 0.449 J/g degree C 10.0 g H2O, CHO = 4.18J/g degree C Which of the following processes is endothermic? a hot cup of coffee (system) cools on a countertop the vaporization of rubbing alcohol the chemical reaction in a "hot pack" often used to treat sore muscles the freezing of water the combustion of propane

Consider the formation of sulfur trioxide according to thereaction:â¨â¨
2 SO2 (g) + O2 (g) Â® 2 SO3 (g) ÎH^o = â 198 kJâ¨â¨

How much heat is evolved in the formation of 750. grams ofSO3?â¨â¨

a. 10.6 kJ

b. 928 kJ

c. 1.86 X 103 kJ

d. 7.43 X 104 kJ

e. 3.71 X 103 kJ

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