Consider the PV diagram shown. The diagram shows an ideal gas which starts in state 1 and is taken to state 2 along the depicted path. (The number of moles of the gas is constant in process) A) which statement characterizes the work done during the process and why? 1. Energy enters the gas due to work 2. Energy leaves the gas due to work 3. No energy enters or leaves the gas due to work 4. Not enough information to tell B) is the change in the internal energy of the gas during the process… and why? 1. Positive 2. Negative 3. Zero 4. Not enough information to tell C) which statement characterizes the heat transfer during the process? 1. Energy enters the gas due to heat transfer 2. Energy leaves the gas due to heat transfer 3. No energy enters or leaves the gas to to heat transfer 4. Not enough information to tell

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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.