At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

The correct answer is B.

Explanation:

Ideal and real gases behave similarly when subjected to high pressures. Depending on the temperature at which they are found if this remains constant the viscosity of the gas will increase. If the temperature is low, the gas will go from a gaseous state to a solid-state, whereas for higher temperatures, it will go to a liquid state. This is easily observed in a phase diagram.

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e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.