Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied 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. (a) Low temperature, low pressure (b) High temperature, low pressure (c) Low temperature, high pressure (d) High temperature, high pressure
(c) At low temperature, the energy of the gas molecules becomes low and high pressure brings the molecules closer. These factors help in liquefaction of the gas.
https://www.tiwariacademy.com/ncert-solutions-class-9-science-curiosity-chapter-1/
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(c) Low temperature, high pressure
Gases can be liquefied by lowering the temperature and increasing the pressure. Low temperature slows down gas molecules, reducing their kinetic energy, while high pressure forces the molecules closer together, allowing them to form a liquid state.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/