Conceptual Questions: These questions are to be answered with a short paragraph.

Problem 2. Biological systems (e.g.livingorganisms )are highly ordered systems. The development of a living organism or the evolution of species from simpler to more complex ones is accompanied by a decrease in the entropy of the organism or species. Doesn't this violate the second law of thermodynamics? Explain.

Complete Solution Questions: These problems are to be answered with detailed calculations.

Problem 3. An ideal diatomic gas undergoes the increases in pressure and volume shown on the graph in Fig.1. The initial temperature of the gas is 297 K. Calculate:

(a) the work done by the gas.

(b) the temperature of the gas at the end of the process.

(c) the change in internal energy in this process.

(d) the quantity of heat added to or removed from the gas in this process.