Question
What happens to a liquid, when the vapour pressure
equals the atmospheric pressure?Solution
Ordinary evaporation is a surface phenomenon -since the vapor pressure is low and since the pressure inside the liquid is equal to atmospheric pressure plus the liquid pressure, bubbles of water vapor cannot form. But at the boiling point, the saturated vapor pressure is equal to atmospheric pressure, bubbles form, and the vaporization becomes a volume phenomena.
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(25, 18, 225)
Look at the below pattern and complete the series: 11, 15, 22, 26, 33, 37, 44, ?
Which of the following numbers will replace the question mark (?) in the given series?
69, 70, 74, 83, ?, 124
A series is 11, 20, 42, 82, 166, 330
If another series 4, a, b, c, d, 106 follows the same pattern as the given number series, then find the appr...
8, 7, 12, 35, 128, 635
8Â Â Â Â 20Â Â Â Â 36Â Â Â Â Â 56Â Â Â Â Â 80Â Â Â Â ?
16, 54, 128, ‘?’, 432,686
218, 108, 160, ? , 1385.50
12    16    43    ?       184    220
...6 16 ? 244 1,245 7,506 52,591
