Question

Seema visited a natural gas compressing unit and found that the gas can be liquefied under specific temperature and pressure conditions. Identify the conditions required.

• A. High temperature, low pressure
• B. Low temperature, low pressure
• C. Low temperature, high pressure
• D. High temperature, high pressure

Answer 1

The correct option is C Low temperature, high pressure

Gases have a weak intermolecular force of attraction and large interparticle space.
Due to these properties, gases are highly compressible.

Particles of gases can be pushed closer by applying pressure and can be converted to liquids.

Also, a decrease in temperature restricts the movement of the particles and increases the force of attraction between them.

Hence, the pressure is high and the temperature is low in the natural gas compressing unit.