Seema visited a Natural Gas Compressing Unit and found that the gas can be liquified under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions
Seema visited a Natural Gas Compressing Unit and found that the gas can be liquified under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions
The correct option is C Low temperature, high pressure
Low temperature and high pressure are the two main conditions for the liquefaction of gases. The critical temperature of a substance can be defined as the highest possible temperature value at which the substance can exist as a liquid. There are three methods other than this.
→ We can compress the gas at a temperature less than its critical temperature.
→ We can apply external force
→ To make the gas to do work against its own internal forces so that liquifies.
The explanation for the incorrect answer
a. Low temperature and low pressure are not suitable conditions for gas to be compressed. Low temperature is required but not low pressure, the gas will expand if the pressure is low. Hence it is incorrect.
b. High temperature and low pressure are not suitable conditions for a gas to be compressed as gas will expand in this case. Hence it is incorrect.
d. High temperature and high pressure are not suitable conditions for a gas to be compressed as gas will expand in case of high temperature. Hence it is incorrect.
The explanation for the correct option
c. Low temperature and high pressure are suitable conditions for a gas to be compressed. Hence it is the correct option.
Hence the correct option is C.
Low temperature, high pressure
Low temperature and high pressure are the two main conditions for the liquefaction of gases. The critical temperature of a substance can be defined as the highest possible temperature value at which the substance can exist as a liquid. There are three methods other than this.
→ We can compress the gas at a temperature less than its critical temperature.
→ We can apply external force
→ To make the gas to do work against its own internal forces so that liquifies.
The explanation for the incorrect answer
a. Low temperature and low pressure are not suitable conditions for gas to be compressed. Low temperature is required but not low pressure, the gas will expand if the pressure is low. Hence it is incorrect.
b. High temperature and low pressure are not suitable conditions for a gas to be compressed as gas will expand in this case. Hence it is incorrect.
d. High temperature and high pressure are not suitable conditions for a gas to be compressed as gas will expand in case of high temperature. Hence it is incorrect.
The explanation for the correct option
c. Low temperature and high pressure are suitable conditions for a gas to be compressed. Hence it is the correct option.
Hence the correct option is C.
