Please help Of the following, the entropy of is the largest. BF_3(g) B_2H_6(g) B
ID: 969221 • Letter: P
Question
Please help Of the following, the entropy of is the largest. BF_3(g) B_2H_6(g) B_2O_3 (s) B_2F_4(g) Ba_3 (I) Which of the following statements is false? The total entropy of the universe increases in any spontaneous process. The change in entropy in a system depends on the initial and final states of the system and the path taken from one state to the other. Any irreversible process results in an overall increase in entropy. Entropy increases with the number of microstates of the system. The normal boiling point of C_2CI_3F_3 is 47.6 dehgreeC and its molar enthalpy of vaporization is 27.49 kj/mol. What is the change in entropy in the system in J/K when 28.6 grams of C_2cl_3F_3 vaporizes to a gas at the normal boiling point? 13.1 -13.1 4.19 27.5 -4.19 The value of deltaGdegree (kj/mol) at 25 degreeC is -575. What is the equilibrium constant for this reaction at this temperature expressed with 2 significant digits? 8.4 times 10101 10 012 times 1010 1.0 more information is needed For a given reaction with AS = -50 8 J/K-mol. the deltaG = 0 at 395 K. The value of AH must be kj/mol assuming that AH and AS do not vary with temperature 20.1 -20.1 -7.78 times 10^-3 129 times 10^-4 -1.29 times 10^-4Explanation / Answer
(1) A. BF3
(2) B. entropy depends only on initial and final states but not on path
(3) B, Number of gaseous molecules increased
(4) no.of moles = 28.6 / 187.5 = 0.1525
Delta S = 0.1525 x 27490 / 320.6 = 13.1 J/K
(5) delta G0 = - 2.303 RT Log K
Log K = 57.5 / (2.303 x 0.008314 x 298) = 10.08
K = 1.2 x 1010
(7) (E) delta S = qrev / T