Question: The entropy of a perfect crystal at absolute zero temperature is given by:
Options:
0
1
Infinity
Depends on the substance
Correct Answer: 0
Solution:
According to the third law of thermodynamics, the entropy of a perfect crystal at absolute zero is exactly zero.
The entropy of a perfect crystal at absolute zero temperature is given by:
Practice Questions
Q1
The entropy of a perfect crystal at absolute zero temperature is given by:
0
1
Infinity
Depends on the substance
Questions & Step-by-Step Solutions
The entropy of a perfect crystal at absolute zero temperature is given by:
Step 1: Understand what entropy is. Entropy is a measure of disorder or randomness in a system.
Step 2: Learn about absolute zero. Absolute zero is the lowest possible temperature, which is 0 Kelvin or -273.15 degrees Celsius.
Step 3: Familiarize yourself with the third law of thermodynamics. This law states that as the temperature of a perfect crystal approaches absolute zero, its entropy approaches a constant minimum.
Step 4: Recognize that for a perfect crystal at absolute zero, there is no disorder. All the particles are in a perfectly ordered state.
Step 5: Conclude that since there is no disorder in a perfect crystal at absolute zero, its entropy is exactly zero.
Third Law of Thermodynamics – States that the entropy of a perfect crystal approaches zero as the temperature approaches absolute zero.
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