The entropy of a perfect crystalline substance at absolute zero is:
Practice Questions
1 question
Q1
The entropy of a perfect crystalline substance at absolute zero is:
Zero
Maximum
Undefined
Infinite
According to the third law of thermodynamics, the entropy of a perfect crystalline substance at absolute zero is zero.
Questions & Step-by-step Solutions
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Q
Q: The entropy of a perfect crystalline substance at absolute zero is:
Solution: According to the third law of thermodynamics, the entropy of a perfect crystalline substance at absolute zero is zero.
Steps: 5
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, 0 Kelvin, where all molecular motion stops.
Step 3: Know what a perfect crystalline substance is. A perfect crystalline substance has a highly ordered structure with no defects.
Step 4: 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 zero.
Step 5: Conclude that at absolute zero, a perfect crystalline substance has no disorder, which means its entropy is zero.
