a) In a chemical reaction one mole of gas reacts with a liquid generating anothe
ID: 599701 • Letter: A
Question
a) In a chemical reaction one mole of gas reacts with a liquid generating another liquid and one mole of another gas. Would you expect DS to be positive, negative, or close to zero for this reaction?DS for this reaction should be:
A)negative
B)positive
C)close to zero
(b) In which of the processes described below should the entropy increase? Choose all of the correct possibilities.
A)ice cubes melting at -5 oC and 1 atm pressure
B)formation solid rust (iron(III) oxide) by oxygen in the air reacting with the iron in an old boat
C)alignment of iron filings in a magnetic field
D)formation a liquid by compressing a gas
E)breakdown of large molecules into smaller ones during digestion of a meal
Explanation / Answer
A C
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