Question 01: (a)2.0g of Nitrogen gas is at 270C in a fixed volume. If 20% of its total internal energy is...

Question 01:

(a)2.0g of Nitrogen gas is at 270C in a fixed volume. If 20% of its total internal energy is due to rotation what is the average velocity of nitrogen molecules?

(b)What will be the temperature 2.0 g of Helium gas in a fixed volume if the average velocity of its molecules is 20 m/s ?

(c)Plot schematic of Cv v/s T curve based for nitrogen and helium gas based on Kinetic theory.

Question 02:

(a)200g of melting ice is introduced to a huge lake at 270C. Find the total entropy change of ice-lake system.

(b)200g of melting ice is introduced to a huge lake at 0.20C. Find the total entropy change of ice-lake system.

(c)Can you draw any conclusion based on result? (Hint: tends to reversible, irreversible etc)