An ideal gas is enclosed in cylinder with frictionless piston at 300 K and 2 bar. The gas expands from the initial volume of 0.1 m' to the final volume 0.2 m in a Two process. (a) The expansion occurs by heating at constant pressure (isobarically), followed by cooling at constant volume (isochorically). (b)The expansion occurs at constant temperature (isothermally) behave as ideal gas (PV=nRT). The process is sketched in following Figures below a. Starting from the general form of work by the scientist Gaspard-Gustave, drive the work equation due to changing the volume for the gas expands in closed system? b. Calculate the work done in process (a). c. Calculate the work done in process (b). 0.1 0.2 V(m3) 0.1 0.2 V (m3) Process (a) Process (b) P (bar) P (bar)

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.