One mole of an ideal gas at T1 = 300.0 K, p1 = 2.4618 atm, and V1 = 10.00 L is isother- mally expanded to V2 = 20.00 L against a constant external pressure of 1.2309 atm. Calculate ∆U, ∆H, q, w, and ∆S. Compare your results for ∆S and q/T and explain whether your results are consistent with the second law of Thermodynamics.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state. a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car