Question

Many experiments in physics are done at ultra-low pressure to insure a clean uncontaminated environment. This is also important for studying modern nano-scale electronics. Consider an ideal gas with a pressure 1.62x10-12 Pa. What is the number density of a gas at a temperature 194 K? This is the number of gas molecules per volume. Give your answer in terms of the number of molecules / cm3, the number of molecules in each cubic centimeter (cc). Your answer is a number, given to at least three digits (more if fine).

Answer 1

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