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Effect of Change of Pressure on State Change of Matter

Gases are liq...

Question

Gases are liquefied under ______.

A

low temperature and low pressure

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B

high pressure and low temperature

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C

high temperature and high pressure

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D

None of these

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Solution

The correct option is B high pressure and low temperature
Gases are liquefied under high pressure as it helps in bringing the particles closer and low temperature reduces kinetic energy thereby keeping the particles again near to each other and it results in forming liquid.
Hence, option $B$ is correct.

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Similar questions

Which of the following represent the suitable conditions for the liquefaction of gases?

(a) low temperature, low pressure (b) high temperature, low pressure

(c) low temperature, high pressure (d) high temperature, high pressure

Q. Question 2
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

Q. Assertion (A): Real gases tend to behave as ideal gas at low pressure and high Temperature.
Reason (R): At temperature more than critical temperature, a gas can’t be liquefied just by increasing the pressure. Which of the followings is correct?

Q. A gas behaves more closely as an ideal gas at
(a) low pressure and low temperature
(b) low pressure and high temperature
(c) high pressure and low temperature
(d) high pressure and high temperature.

Q. Under which of the following condition is the law

P V = n R T

obeyed most closely by a real gas?

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