Chemistry: Which item (a, b or c) in each of the three groups below has the lowest entropy?
I. (a) 10 g ice (b) 10 g water vapor (c) 10 g liquid water
II. (a) 1 mole NaCl solid (b) 1 mol NaCl in 1 M aqueous solution (c) 1 mol molten
NaCl
III. (a) 1 mole C2H6(g), (b) 1 mole CH4(g), (c) 1 mol C3H8(g) all at 25 C and 1 atm
A) a, a, b
B) c, b, c
C) b, b, c
D) a, b, c
E) a, a, c

Question

Which item (a, b or c) in each of the three groups below has the lowest entropy?
I. (a) 10 g ice (b) 10 g water vapor (c) 10 g liquid water
II. (a) 1 mole NaCl solid (b) 1 mol NaCl in 1 M aqueous solution (c) 1 mol molten
NaCl
III. (a) 1 mole C2H6(g), (b) 1 mole CH4(g), (c) 1 mol C3H8(g) all at 25 C and 1 atm
A) a, a, b
B) c, b, c
C) b, b, c
D) a, b, c
E) a, a, c

Chemistry · Accepted Answer

ANS: A PTS: 1 DIF: Easy REF: 17.5
KEY: Chemistry | general chemistry | thermochemistry | thermodynamics | second law of
thermodynamics | entropy

Chemistry

ANS: A PTS: 1 DIF: Easy REF: 17.5 KEY: Chemistry | general chemistry | thermochemistry | thermodynamics | second law of thermodynamics | entropy

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