States of Matter

The unit of the van der Waals gas equation parameter 'a' in $\left(P+\frac{a{n}^2}{V^2}\right)\left(V-nb\right)=nRT$ is:

A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06:00 am when the temperature is $27°C$ $$ . At 03:00 pm, when the temperature is $$ $45°C$ , the pressure in the tank will be___________atm. [nearest integer]

A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06:00 am when the temperature is $27°C$ . At 03:00 pm, when the temperature is $45°C$ , the pressure in the tank will be___________atm. [nearest integer]

Identify the correct labels of $\mathrm{A},\mathrm{B}$ and $\mathrm{C}$ in the following graph from the options given below

Root mean square speed $\left({\mathrm{V}}_{\mathrm{r}\mathrm{m}\mathrm{s}}\right)$ ; most probable speed $\left({\mathrm{V}}_{\mathrm{m}\mathrm{p}}\right)$ ; Average $\mathrm{s}\mathrm{p}\mathrm{e}\mathrm{e}\mathrm{d}?\left({\mathrm{V}}_{\mathrm{a}\mathrm{v}}\right)$

'x' g of molecular oxygen(O₂) is mixed with 200g of neon (Ne). The total pressure of the non-reactive mixture of O₂ and Ne in the cylinder is 25 bar. The partial pressure of Ne is 20 bar at the same temperature and volume. The value of 'x' is_________.

For a real at 25°C temperature and high pressure (99 bar) the value of compressibility factor is 2, so the value of Vander Waal's constant 'b' should be__________* 10^-2 L mol^-1. (Nearest Integer)       

(Given R = 0.083 L bar K^-1 mol^-1)

A sealed flask with a capacity of 2 dm³ contains 11g of propane gas. The flask is so weak that it will burst if the pressure becomes 2 MPa. The minimum temperature at which the flask will burst is _________ $°C$ . [Nearest integer]

(Given: R = 8.3 JK^-1 mol^-1. Atomic masses of C and H are 12u and 1u, respectively)

(Assume that propane behaves as an ideal gas.)

The pressure of a moist gas at $27°C$  is 0.04 atm. The volume of the container is doubled at the same temperature. The new pressure of the moist gas is _______ * 10^-1atm. (Nearest integer)

(Given: The vapour pressure of water at $27°C$  is 0.4 atm)

'x' g of molecular oxygen(O₂) is mixed with 200g of neon (Ne). The total pressure of the non-reactive mixture of O₂ and Ne in the cylinder is 25 bar. The partial pressure of Ne is 20 bar at the same temperature and volume. The value of 'x' is_________.

At 300K, a sample of 3.0g of gas A occupies the same volume as 0.2g of hydrogen at 200K at the same pressure. The molar mass of gas A is _________g mol^-1, (nearest integer) Assume that the behavior of gases as ideal. (Given: The molar mass of hydrogen (H₂) gas is 2.0g mol^-1.)