Please show all work A.)Choose the statement below that is TRUE. B.)Place the fo

Question

Please show all work

A.)Choose the statement below that is TRUE.

B.)Place the following in order of decreasing molar entropy at 298 K.

H2 Cl2 F2

C.)Calculate Grxn at 298 K under the conditions shown below for the following reaction.

3 O2(g) 2 O3(g) G° = +326 kJ

P(O2) = 0.41 atm, P(O3) = 5.2 atm

D.)Place the following in order of increasing entropy at 298 K.

Ne Xe He Ar Kr

a.If K < 1, the reaction is spontaneous in the forward direction. b. If K < 1, the reaction is spontaneous in the reverse direction. c, If K < 1, the reaction is at equilibrium. d. Not enough information is given.

Explanation / Answer

A) The reaction will move backwards or towards the reactants if K < 1, letter b)

B) As chlorine is the biggest molecule, then fluorine and lastly hydrogen, the order of decreasing entropy will be:

Cl2 > F2 > H2

C) For calculating deltaGrxn -> deltaGrxn = deltaGo + RTlnQ

Where Q is the reaction quotient:

deltaGrxn = 326 kJ + [0.008314 kJ/molK * 298K * ln[5.22/0.413]]

deltaGrxn = 326 + 14.8 = 340.8 = 341 kJ

D) Following same principle of atomic size:

He < Ne < Ar < Kr < Xe

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