One of the assumptions of kinetic theory of gases states that "there is no force of attraction between the molecules of a gas "How far is this statement correct?Is it possible to liquefy an ideal gas? Explain.

A gas that follows Boyle's law, Charle's law and Avogadro's law is called an ideal gas.Under what condition a real gas would behave ideally?

Explain why temperature of a boiling liquid remains constant?

Explain the physical significance of van derWaals' parameters.

What would have happened to the gas if the molecular collision were not elastic?

35mL of oxygen were collected at 6\(^{o}\)C and 758 mm pressure. Calculate its volume at NTP.

Compressibility factor, Z of a gas is given as \(Z=\frac { pV }{ nRT } \) For real gas what will be the effect on the value of Z above Boyle's temperature?

A student forgot to add the reaction mixture to the round bottom flask at 27\(^{o}\) C but instead, he/she placed the flask on the flame. After a lapse of time, he realized his mistake and using a pyrometer he found the temperature of the flask was 477 C. What fraction of air would have been expelled out?

The compression factor(compressibility factor) for one mole of a van der Waals gas at 0^oC and 100 atm pressure is found to be 0.5. Assuming that the volume of a gas molecule is negligible, calculate the van der Walas' constant a.

An iron cylinder contains helium at a pressure of 250 KPa at 300 K. The cylinder can withstand a pressure of \(1\times { 10 }^{ 6 }Pa\) . The room in which cylinder is placed catches fire. Predict whether the cylinder will blow up before it melts or not (mp of the cylinder = 1800 K).

Rohan takes an open pan to cook vegetables and pulses at a hill station while Sohan cooks pulses and vegetables in a pressure cooker at the same place.The gas cylinder of Rohan lasts for only 15 days whereas Sohan uses one gas cylinder per month.
Why does Sohan need only one gas cylinder per month and not two like Rohan?

Explain
The boiling point of water (373 K) is abnormally high when compared to that H₂S (211.2 K).