<s>[INST] Are ideal gasses better than real gasses? [/INST] Please elaborate for a proper answer.</s>\ <s>[INST] I am wondering if ideal gasses are more efficient than real gasses in terms of their ability to expand and contract. [/INST] Ideal gasses will be more efficient in their ability to contract, as ideal gasses do not have any volume, while real gasses do have volume, and so have a minimum amount that they can contract. I do not know how it would effect the expansion of the gasses, although ideal gasses always follow the ideal gas law, which is PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the gas constant, and T is the temperature.</s>