GATE Chemical Engineering Practice Quiz

Question 1

A rigid vessel of volume 0.5 m^3 contains nitrogen behaving ideally at 300 K and 2 bar. The vessel is heated to 450 K. What is the final pressure?

Accepted Answer

3.0 bar

Question 2

An ideal gas occupies 10 L at 1 atm and 300 K. It is compressed isothermally to 4 L. What is the final pressure?

Accepted Answer

2.5 atm

Question 3

A 0.5 m^3 evacuated rigid tank is connected to a large ideal-gas line at 600 kPa and 400 K. After filling, the gas in the tank cools to 300 K while the tank remains sealed. Assuming the final pressure is measured after cooling, what is the final pressure in the tank?

Accepted Answer

450 kPa

Question 4

A 1 m^3 tank contains an ideal gas at 200 kPa and 300 K. Another identical 1 m^3 tank contains the same gas at 100 kPa and 300 K. The tanks are connected and allowed to mix isothermally. What is the final pressure in the combined 2 m^3 volume?

Accepted Answer

150 kPa

Question 5

A 20 L cylinder contains an ideal gas at 10 bar and 300 K. Gas is released until the pressure drops to 6 bar, while temperature remains constant. What fraction of the initial moles remains in the cylinder?

Accepted Answer

0.60

GATE Chemical Engineering

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