#Question id: 5010
#Unit 11. Evolution and Behavior
Which of the following steps has not yet been accomplished by scientists studying the origin of life?
#Question id: 24165
#General Aptitude
#Question id: 17656
#Unit 7. System Physiology – Animal
#Question id: 73
#Unit 1. Molecules and their Interaction Relevant to Biology
Match the Variation of Reaction Spontaneity (Sign of ΔG) given in Column I with the Signs of ΔH and ΔS given in column II.
COLUMN I |
COLUMN II |
|
|
|
ΔH |
ΔS |
ΔG = ΔH – TΔS |
1. |
− |
+ |
a. The
reaction is both enthalpically and entropically opposed. It is nonspontaneous
(endergonic) at all temperatures. |
2. |
− |
− |
b. The
reaction is enthalpically opposed (endothermic) but entropically favored. It
is spontaneous only at temperatures above T = ΔH/ΔS. |
3. |
+ |
+ |
c. The
reaction is enthalpically favored but entropically opposed. It is spontaneous
only at temperatures below T = ΔH/ΔS. |
4. |
+ |
− |
d. The
reaction is both enthalpically favored (exothermic) and entropically favored.
It is spontaneous (exergonic) at all temperatures. |
#Question id: 23322
#Unit 1. Molecules and their Interaction Relevant to Biology