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40 votes
40 votes
Which of the following is true for the entropy of the universe?

A It is always decreasing.
B It is always increasing.
C It is always negative.
D It is always a constant.

User Sithumc
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1 Answer

24 votes
24 votes

Answer:

B It is always increasing.

Step-by-step explanation:

In Physics, entropy can be defined as the tendency or ability of a substance to reach maximum disorder i.e to be randomly distributed.

This ultimately implies that, entropy is a thermodynamic quantity that measures the degree of maximum disorder or randomness of a system.

The S.I unit used for the measurement of the degree of maximum order or randomness of a system is Joules per Kelvin (JK¯¹). An example of entropy is the mixing of ideal gases.

Generally, the entropy in an irreversible process always increases and as such the change in entropy has a positive value.

Hence, the entropy of the universe is always increasing because its energy flow is considered to be in a downward direction rather than upward i.e from a hot region to a cold region; making the energy to be evenly distributed.

User Mark Szymanski
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