For the Reaction a + B → C + D

question 135

Multiple Choice

For the reaction A + B → C + D, ΔH° = +40 kJ and ΔS° = +50 J/K. Therefore, the reaction under standard conditions is

• A) spontaneous only at temperatures between 10 K and 800 K.
• B) spontaneous at temperatures greater than 800 K.
• C) spontaneous at all temperatures.
• D) nonspontaneous at all temperatures.
• E) spontaneous at temperatures less than 10 K.

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Definitions:

Hyperpolarization

Hyperpolarization is an increase in a cell's membrane potential, making it more negative and less likely to fire an action potential.

Repolarization

The process of restoring the negative charge inside a neuron or muscle cell after depolarization, preparing it for another action potential.

Electric Signals

are impulses of charged particles, such as ions, used by neurons and other cells to communicate and perform physiological functions.

Cell Body

The part of a neuron that contains the nucleus and most of the cytoplasm and organelles, serving as the metabolic center.