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单词 Joule experiment
释义 Joule experiment
[`jül ik´sper·ǝ·mǝnt]
THERMODYNAMICS
1. An experiment to detect intermolecular forces in a gas, in which one measures the heat absorbed when gas in a small vessel is allowed to expand into a second vessel which has been evacuated.
2. An experiment to measure the mechanical equivalent of heat, in which falling weights cause paddles to rotate in a closed container of water whose temperature rise is measured by a thermometer.
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