0:00
Hello everyone.
00:01
So the question that has been asked here.
00:05
The first one is that there is a dynamic equilibrium which occurs when the rate of vaporization of a liquid in a closed container is dash the rate of condensation of gases vapor that forms above the liquid.
00:25
So we have to fill in the blank.
00:30
So the rate of rate of vaporization of that forms above the liquid.
00:39
Rate of vaporization of liquid in a closed chamber in a closed chamber so it's a closed container closed container is equal to is equal to rate of condensation rate of condensation of gas gasp vapor so that's the question and we have to fill in the blank here so the dynamic equilibrium occurs when the rate of vaporization of a liquid in a closed container becomes equal to rate of condensation of gases vapor so the correct answer for this one will be equal to now let's move on to the second one the second question that we have in the second question question we have been asked here the partial pressure exerted by gas that's in dynamic equilibrium with its liquid is referred to a substance vapor pressure vapor pressure now the next one is as you as we heat a given liquid its vapor pressure increases on hitting a liquid its vapor pressure increases then the next one is if a liquid is heated in an open container it will start to boil when its vapor pressure when its vapor pressure is equal to the applied atmospheric pressure.
04:11
The liquid only starts to boil when its vapor pressure becomes equal to atmospheric pressure.
04:23
And if this pressure is 1 atm or 760 tower at sea level we refer to this temperature as the substance normal boiling point or atmospheric boiling point.
04:43
Boiling point then the next question we have we have been given with a few compounds and their vapor pressure and we have been asked here that out of the given compounds given with the vapor pressure which one has highest boiling point so as we are given with the vapor pressure of each compound so we have to relate between vapor pressure and boiling point then only we would be able to find out which compound has highest boiling point.
05:31
So whenever for a compound, whenever for a compound, its vapor pressure is quite high.
05:42
Suppose we have two compounds a and b and if a has higher vapor pressure than your b, then that basically means compound a should, should have boiling point much less than that of b.
06:10
Why? because a has much higher vapor pressure than b.
06:14
That makes sense that a should have its boiling point lower than b than only a will vaporize at a lower temperature and will form vapor pretty much faster as compared to b.
06:29
And that is the reason why a would have a lower boiling point and higher vapor pressure.
06:36
While b would have higher boiling point and lower vapor pressure when we compare it with a.
06:44
So we can say that a has lower boiling point than b.
06:57
So now we can relate between vapor pressure and boiling point.
07:01
Wepper pressure is inversely proportional to boiling point.
07:11
So as we are given with the vapor pressure of a few components, the compound with the compound with lower vapor pressure should have higher boiling point.
07:24
So out of these given options, ethanol has, ethanol has vapor pressure has vapor pressure of 44 and it is the lowest out of the given options.
07:37
So ethanol will have a higher boiling point...