Which of the following statements is consistent with the second law of thermodynamics?Question 10Select one:a.A gain of free energy in a system is never associated with conversion of energy from one form to another.b.Without an input of energy, the entropy of an organism would tend to decrease over time.c.Every energy transformation performed by an organism decreases the entropy of the universe.d.A constant input of energy is required to maintain the high level of organisation associated with living cells.
Question
Which of the following statements is consistent with the second law of thermodynamics?Question 10Select one:a.A gain of free energy in a system is never associated with conversion of energy from one form to another.b.Without an input of energy, the entropy of an organism would tend to decrease over time.c.Every energy transformation performed by an organism decreases the entropy of the universe.d.A constant input of energy is required to maintain the high level of organisation associated with living cells.
Solution
The statement that is consistent with the second law of thermodynamics is:
d. A constant input of energy is required to maintain the high level of organisation associated with living cells.
The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time, and is constant if and only if all processes are reversible. Isolated systems spontaneously evolve towards thermodynamic equilibrium, the state with maximum entropy. In the context of living cells, they require a constant input of energy to maintain their high level of organization and to perform their functions. Without this energy, the system would move towards equilibrium, increasing its entropy.
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