Chemical Engineering Thermodynamics
Which one is true for a throttling process?

The inversion temperature is same for all gases
A gas may have more than one inversion temperatures
The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity
The inversion temperature is different for different gases

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Chemical Engineering Thermodynamics
Law of corresponding states says that

The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature
, two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same
No gas can be liquified above the critical temperature, howsoever high the pressure may be
The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories)

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