
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Indicate which substance in the given pairs has a higher entropy value. Explain your choices.
(a) C2H5OH(l) or C3H7OH(l)
(b) 2H(g) or H(g)
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- carrow_forwardGiven the following reaction: 9C (s) + 12H2 (g) + 3/2 O2 (g) → 3C3H7 OH (1) If the enthalpy change is -954 kJ and entropy increases: blank 1: is the reaction exothermic or endothermic? blank 2: is the reaction spontaneous or non-spontaneous?arrow_forwardFor each of the following pairs, predict which substancehas the higher entropy per mole at a given temperature:(a) Ar(l) or Ar(g), (b) He(g) at 3 atm pressure or He(g)at 1.5 atm pressure, (c) 1 mol of Ne(g) in 15.0 L or 1 mol ofNe(g) in 1.50 L, (d) CO2(g) or CO2(s).arrow_forward
- 11) Why can endothermic reactions be spontaneous?arrow_forwardWhen dry ice (solid CO 2) sublimates, its entropy(A) increases(B) decreases(C) does not change(D) could either increase or decrease, depending on other factorsarrow_forward38. For this process at 25 °C: H2O(g) H2O (A) AH is negative as energy is released. (B) AH is negative as energy is absorbed. (C) AH is positive as energy is released. (D) AH is positive as energy is absorbed.arrow_forward
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