7) This question pertains to relating entropy to other thermodynamic variables. a. 1 mol of an ideal gas is reversibly expanded from 10 bar to 1.0 bar at constant temperature. Calculate AU, AH, and AS. b. Explain the meanings of the sign for each non-zero thermodynamic quantity calculated in part a. If any quantity has a value of zero, explain the meaning of a zero value for that variable.

5. When 2.00 mol of an ideal gas at 330K and 3.50 atm are compressed isothermally to some pressure Pf, its entropy decreases by 25.0 J/K. Calculate Pf and DG for this process.

1. All of the following are not state functions EXCEPT Group of answer choices w q P S   2.According to the_______Law  of Thermodynamics, for any spontaneous reaction, the entropy of the universe increases. Group of answer choices A. Third B, Zeroth C, Second D, First E, Fourth

Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction A B с observations Crystallization of a pure compound is spontaneous only below 23. °C. This reaction is spontaneous only above 31. °C but proceeds at a faster rate above 83. °C. The reverse of this reaction is always spontaneous but proceeds faster at temperatures above 108. °C. AH is AS is AH is AS is conclusions ΔΗ is AS is (pick one) (pick one) (pick one) (pick one) (pick one) (pick one) V

For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System Change AS O AS 0 not enough information O AS 0 not enough O information O AS 0 not enough O information Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center | O O

What of the following options describes the term "entropy, S"? O a. If a process or reaction is carried out in multiple steps, the sum of the enthalpy changes for these steps is the same as the enthalpy change if the entire reaction was carried out in a single step. O b. An indication that a process is capable of proceeding in a given direction without needing to be driven by an outside source of energy. O c. A thermodynamic function which measures the dispersal of energy amongst the particles in a substance. O d. The substances or material being studied in an experiment. For a chemical reaction, the system is all of the atoms in the substances undergoing the reaction. O e. Everything outside of the system.

ouming Calculate the standard molar entropy of vaporization of water at 43.0 °C, given that its standard molar entropy of vaporization at 100.0 °C is 109.0 J-K mol and the molar heat capacities at constant pressure for liquid water and water vapor are 75.3 J-K1.mol-1 and 33.6 J-K.mol, respectively, in this temperature range. J.K-1. mol-1 ASvap TOOLS x10 Question Source: Atkins 7e - Chemical Principles | Publisher: W.H. Fm We The

8. You have discovered a new polymer. A monomer is shown below. To better understand its behavior you calculate its theoretical entropy. With careful measurements you find that it can be in 3 positions around the 1st bond in the chain, 2 around the 2nd bond, 1 around the 3rd bond and 3 around the 4th bond. Further, the ring can be in 4 different positions. What is the entropy in units of KB?