Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid) ?
Correct answer: A. p = P
- A. p = P
- B. p >>P
- C. p < P
- D. p << P
Explanation
Condensation starts when the vapour partial pressure reaches the saturation vapour pressure of the liquid at the same temperature. If p is lower than P, the vapour remains unsaturated and does not condense.
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