Calculate the total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 dm³ at 27\(^{o}\)C. (R = 0.083 bar dm³ K^-1 mol^-1)

3

(a)

Explain the term 'Laminar flow'. Is the velocity of molecules same in all the layers in laminar flow? Explain your answer.

3

(a)

The variation of the vapour pressure of different liquids with temperature is shown in the figure below.

If we take liquid C in a closed vessel and heat it continuously, at what temperature will it boil?

3

(a)

A vessel of 120 mL capacity contains a certain amount of gas at 35°C and 1.2 bar pressure. The gas is transferred to another vessel of volume 180 mL at 35°C. What would be its pressure?

3

(a)

The values of the van der Waal's constants for a gas are a = 4.10 dm⁶ bar mol^-2 and b = 0.035 dm³ mol^-1. Calculate the values of the critical temperature and critical pressure for the gas.

3

(a)