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By increasing the temperature , the vapour pressure of a substance
Options
(a) always increases
(b) does not depend on temperature
(c) always decreases
(d) partially depends on temperature
Correct Answer:
always increases
Explanation:
The vapour pressure of a substance increases with rise in temperature. With an increase in temperature, the kinetic energy of molecules increases. In other words with rise in temperature, the number of molecules having sufficient kinetic energy to overcome the intermolecular attraction forces also increases. As a result, more molecules would leave the liquid surface to enter the phase. This results to increases in vapour pressure.
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- Which of the following statements is true for the electrochemical Daniel cell
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Topics: Solid State and Solutions
(91)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The nitration (using nitration mixture) of aniline gives
- Which of the following statements is true for the electrochemical Daniel cell
- At room temperature the eclipsed and staggered forms of ethane can not be isolate
- If n = 6, the correct sequence for filling of electrons will be:
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
Topics: Solid State and Solutions (91)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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