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A gas can be liquified by pressure alone only, when its temperature is __________ its critical temperature.?

LohaHridoy
  1. Less than
  2. More than
  3. Equal to or higher than
  4. Less than or equal to

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AhmedNazir

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Answer: Option 4

Only below and at the critical point there is strong demarcation in properties of liquids and gases above the critical point we can’t recognize the difference. Hence for a gas which is under or at the critical point can be liquefied. For a gas above critical point can also undergo a pressure change but we can’t notice the difference in properties.

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The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.?

Answer: Option 3 Let'

1 Answers 1 views
The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air)?

Answer: Option 3 The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by p₂ = p₁ × p₂ where p₁ = Intake pressure of...

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Answer: Option 2 Relative humidity is given by μ/[1 - (1 - μ) (Ps/Pb)] where pv = Partial pressure of water vapour, pb = Barometric pressure, ps = Pressure of saturated air, pd...

1 Answers 1 views
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Answer: Option 3 Let'

1 Answers 1 views
A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the __________ mean of P₁ and P₂.(where, P₁ and P₂ are initial and final pressures respectively)?

Answer: Option 3 Let'

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There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would?

Answer: Option 3 There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure...

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A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its?

Answer: Option 1 Let'

1 Answers 4 views
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.?

Answer: Option 1 The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called as Boyle temperature.

1 Answers 1 views
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature.?

Answer: Option 2 Definition of Boyle temperature: the temperature at which a real gas obeys the ideal gas laws over wide range of pressures that particular temperature is called as...

1 Answers 1 views
If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that?

Answer: Option 4 Let'

1 Answers 1 views

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