Consider the diagram to the right. The “initial” sketch illustrates, both at the macroscopic and molecular levels, an initial condition: 1 mol of a gas at 273 K and 1.00 bar. With as much detail as possible, illustrate the final condition after each of the following changes.

(a) The pressure is changed to 250 mmHg while standard temperature is maintained.

(b) The temperature is changed to 140 K while standard pressure is maintained.

(c) The pressure is changed to 0.5 bar while the temperature is changed to 550 K.

(d) An additional 0.5 mol of gas is introduced into the cylinder, the temperature is changed to and the pressure is changed to 2.25 bar.

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Initial Final