JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics,...
23 p 30+ ody 1 Determines le for the reason 30.09) given the following information Slemelk) 4 F Substance Fe O.) Feca) 0.6) 273 205.0 a -144.9 J/mol K d -549.4 mol K 549.4 J/mol K +1449/mol 899.0 /mol K 7. According to the second law of thermodynamics, the change in the entropy of the universe (DS...) during spontaneous reaction is b negative c. positive d less than the change in entropy of the system (DS...) e greater than the...
Using the standard entropy values: NOG), S = +210.6 J mol-1 K-1 02(0), sº = +205.0 J mol-1 K-1 NO2(g), sº = +240.5 J mol-1 K-1 calculate the standard entropy change, Asº, for the reaction: NO(g) + O2(g) NO2(g) A.-246.1 kJ B. +246.1 kJ C.-175.1 kJ D.-656.1 kJ E. -72.6 kJ
5. The standard molar entropy of liquid ethanol (C2H5OH) is 160.7 J K mol and the standard enthalpy of combustion is - 1368 kJ mol at 298 K, how much is the standard Gibbs energy (A,Gº) of formation of liquid ethanol at 298 K? (20 pts) The formation reaction of ethanol is 2C (graphite) + O2(g) + 3H2 (g) → C2H5OH() The combustion reaction of ethanol is CH5OH (1) + 302 (9) ► 200, (g) + 3H20 (1) CO; (g)...
The standard entropy change for the reaction 302() 203() is -137.2 J/K mol at 298 K and 1 bar. Calculate the value of AS rx at 460 K, assuming that all values are independent of temperature. [ACP,ran for this reaction is -9.8 kJ/K mol).] Г ЈК - mol
Calculate the entropy change from burning 41.1 g of solid glucose (C6H1206, molar mass 180.2 g/mol) to produce gaseous carbon dioxide and gaseous water, using the values in the table below. Substance º/JK' mort Glucose(s) 209.2 02(9) 205.15 CO2(g) 213.79 H2009) 188.84 Select one: a. 4.01e4 J/K o b. 223 JIK O C.-2.67 J/K d. None of the other options. e-482 J/K
Given the following table of thermodynamic data, substance S° C2H2 (g) 200.8 J/mol −K C2H4 (g) 219.4 C2H6 (g) 229.5 H2 (g) 130.58 determine the D S° (in J/mol −K) for the reaction: C2H2 (g) + H2 (g) ® C2H4 (g) −111.98 −101.88 −232.46 +111.98 +101.88
1. Thermodynamic data at 298 K. So (J/K) AHOf (kJ/mol) 205 0 O2 (g) 239 142.7 O3 (g) a) Calculate the standard entropy change for the production of ozone from oxygen at 298 K. Is this an increase or decrease in randomness? Explain briefly. -> 203 (g) 302 (g) b) Calculate the standard free energy change for this reaction. Is this reaction spontaneous under standard conditions? c) Calculate the AG° of formation for ozone.
Question 8 Calculate the standard entropy change and report its value in J/K mol for the following reaction: 2AB (g) -+2 A(g) + 6(e) Given: S"[A ] - 286 J/K-mol, S"[B(g)]- 131 J/K-mol, and S"[AB,()] - 849 J/K mol. If the value is negative include the sign. Do not include units. Previous
Substance AGP (kJ/mol) AS (J/mol K) NO (g) 86.7 211 NO2 (g) 51.8 240 NOCI (g) 66.3 264 N20 (g) 103.6 220 What is the value of AH° (in kJ) at 25.0 °C for the reaction: N20 (g) + NO2 (g) → 3 NO (g) 5.5 kJ 53.2 kJ 109 kJ 156.2 kJ
1. A reaction has AH = 100 kJ/mol and AS = 250 J/mol K. a. Is the reaction spontaneous at room temperature? b. If not, under what temperature conditions will it become spontaneous? 2. Consider the following reaction at 298 K: N204(g) = 2NO2(g) KP=0.142 What is the standard free energy change at this temperature? Is the reaction spontaneous at this temperature?