Change in entropy is defined as
S = Q/T
Where Q is the heat exchanged T is temperature in K uints
So
S = -29.88 / 309.2 = - 0.0966 J/K
Question 8 PFlag question Tries remaining 1 Points out of 1.co Find the change in entropy (J/K) for a constant pres...
Question 14 PFlag question Points out of 1.00 Tries remaining 1 What is the change in Gibb's free energy (kJ) for a given reaction? The change in enthalpy for the reaction is -137.7 kJ, and the change in entropy is 30.0 J/K at 5.0 °C. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check
Question 20 Tries remaining Points out of 100 pFlag question For an equilibrium reaction, AG=0 kJ at 452.8 K. If the equilibrium constant is 7.4, what is the standard change in Gibb's free energy (kJ) of this reaction? Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer: Check
Question 10 Tries remaining Points out of 100 Flaggston What is the overall change in entropy (J/K) of the 'universe' for the condensation of an unknown substance B? The change in entropy for the process is -8.8 J/K and the change in entropy for the surroundings is 12.2 J/K. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check
Question 9 Tries remaining 1 Points out of 100 Flag question Find the change in enthalpy (kJ) for the melting of an unknown substance Y if the entropy for the process is 83.615 J/K at -4.7 °C. Multiple tries are permitted, however, 20% (1/5) point will be deducted for each incorrect response Answer: Check
Question 9 PFlag question Tries remaining 2 Points out of 1.00 What is the pH of a 0.00322 M solution of NH(CH3)3Cl? The Kp of N(CH3)3 is 6.3x105 Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response
Question 16 Tries remaining 1 Points out of 100 P Flag question Find the temperature (°C) above which the evaporation of unknown liquid Sis spontaneous. The change in enthalpy for the reaction is 440.5 kJ, and the change in entropy is 284.1 J/K Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check
Question 15 Tries remaining Points out of 1.00 Flag question Find the temperature (°C) below which the evaporation of unknown liquid Dis spontaneous. The change in enthalpy for the reaction is -263.7 kJ, and the change in entropy is -481.5 J/K. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check
Question 17 The remaining Points out of 100 g What is the change in enthalpy (kJ) for a given reaction? The change in Gibb's free energy for the reaction is 34.2 kJ, and the change in entropy is -197.3 J/K at 97.5 °C. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check
Question 22 Tries remaining Points out of 1.00 pagi For an equilibrium reaction, AG0 kJ at 270.1 K. If the standard enthalpy of this reaction is -29,5 kJ, and the standard entropy is 42.7J/K, what is the equilibrium constant? Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response. Answer: Check
Question 7 Tries remaining Points out of 100 prag question For the reaction below, determine the standard change in entropy, 45° (J/K). Reference relevant s values in Appendix G. CS(6) + 3CU(g) → CCI + SC16) Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check