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Explain how good thermal contact with liquid nitrogen can
Chapter 34, Problem 25(choose chapter or problem)
QUESTION:
Problem 25CQ
Explain how good thermal contact with liquid nitrogen can keep objects at a temperature of 77 K (liquid nitrogen’s boiling point at atmospheric pressure).
Questions & Answers
QUESTION:
Problem 25CQ
Explain how good thermal contact with liquid nitrogen can keep objects at a temperature of 77 K (liquid nitrogen’s boiling point at atmospheric pressure).
ANSWER:
Solution 25CQ
Step 1 of 2
The boiling point of liquid nitrogen under atmospheric conditions is 77 K. So when liquid nitrogen is slow boiled, we obtain a constant temperature of 77 K, which is maintained till the last drop of liquid nitrogen is boiled off.