To an evacuated vessel with a movable piston under a total pressure of 1 atm, 0.1 mol of He and an unknown compound (vapour pressure 0.68 atm at 0℃) are introduced. Considering the ideal gas behaviour, the total volume (in litre) of the gases at 0℃ is close to: - Padhle.Online
Students' favourite free learning app with LIVE online classes, instant doubt resolution, unlimited practice for classes 6-12, personalized study app for Maths, Science, Social Studies, video e-learning, online tutorial, and more. Download Now!

To an evacuated vessel with a movable piston under a total pressure of 1 atm, 0.1 mol of He and an unknown compound (vapour pressure 0.68 atm at 0℃) are introduced. Considering the ideal gas behaviour, the total volume (in litre) of the gases at 0℃ is close to:

For a better understanding of the Ideal Gas Equation, let us mention the four gas variables and one constant. Pressure (P), Volume (V), Number of Moles (n), and Temperature (T) are the four gas variables (T). Finally, R, often known as the Gas constant, is a constant in the equation presented below.

nRT = PV

Assume the unknown substance is x and its vapour pressure is 0.68 atm, as stated in the question.

Pressure of helium will be = 1 – 0.68 = 0.32 atm Now according to the Ideal gas Equation: PV = nRT V = nRT/P

Here, P = pressure of helium,

n = number of moles of Helium.

Now, V = 0.1×0.082×273/0.32 = 7 L

Principal, Babu Daudayal SVM, Mathura

Oops!
It seems there is something wrong with your internet connection. Please connect to the internet and start browsing again.
We have detected that you are using adblocking plugin in your browser.
The revenue we earn by the advertisements is used to manage this website, we request you to whitelist our website in your adblocking plugin.
Site is Blocked
Sorry! This site is not available in your country.