A closed vessel is maintained at a constant temperature. It is first evacuated and then water vapour is introduced in it continuously. The pressure of gas in the vessel

remain constant

No worries! We‘ve got your back. Try BYJU‘S free classes today!

increases continuously

No worries! We‘ve got your back. Try BYJU‘S free classes today!

first increases and then becomes constant

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

first increases and become maximum and then decreases

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C first increases and then becomes constant
First, pressure will increase due to increment of amount of gas in constant volume at constant temperature. But then, saturation will be reached and water will start condensing (since temperature is constant) and then any extra vapour introduced will condensate and hence the pressure will remain constant.

Suggest Corrections

Similar questions

Q. Vapour is injected at a uniform rate in a closed vessel which was initially evacuated. The pressure in the vessel
(a) increases continuously
(b) decreases continuously
(c) first increases and then decreases
(d) first increases and then becomes constant.

Q. A closed vessel is maintained at a constant temperature. It is first evacuated and then vapour is injected into it continuously. The pressure of the vapour in the vessel is:

Q. When a hot liquid is mixed with a cold liquid, the temperature of the mixture

(a) first decreases then becomes constant
(b) first increases then becomes constant
(c) continuously increases
(d) is undefined for some time and then becomes nearly constant

Q. A student takes some water in a beaker and heats it over a flame for determining its boiling point. He keeps on taking its temperature readings. He would observe that the temperature of water :
(1) keeps on increasing regularly
(2) keeps on increasing irregularly
(3) first increases slowly, then decreases rapidly and eventually becomes constant
(4) first increases gradually and then becomes constant.

A given mass of ideal gas has volume (V) at pressure (P) and the room temperature. If its pressure is first increased by 50% and then decreased by 50% (both at constant temperature only), the volume becomes.

Join BYJU'S Learning Program