Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Why is vapour pressure called partial pressure in humidity study?

Answer and explanation

Correct answer: Because it is the pressure exerted only by water vapour in the air mixture

Direct answer: A, because vapour pressure is the pressure contributed by water vapour alone within the mixture of atmospheric gases. Air is not a single gas; it contains nitrogen, oxygen, water vapour, and small amounts of other gases. Each gas contributes to the total pressure according to its own share of the molecules. The pressure due only to water vapour is therefore called its partial pressure. Total air pressure is the combined pressure of all constituent gases, so water-vapour pressure is only one part of it. B is wrong because vapour pressure is relevant at all elevations, although its value can vary with temperature and moisture. C is wrong because a component pressure cannot be greater than the total pressure of the mixture. D is wrong because pressure is not a measure of sound. Memory cue: “partial” means one gas’s share of the total pressure; vapour pressure is the moisture component of air pressure.

Related tags

Vapour PressurePartial PressureHumidityGas MixtureEvaporationAnd CondensationHumidity Evaporation And CondensationWater In The AtmosphereGeography

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.