Q.

The density of a gas is maximum at –

A. Low temperature, low pressure
B. Low temperature, high pressure
C. High temperature, low pressure
D. High temperature, high pressure
Answer» B. Low temperature, high pressure
Explanation: The density of gases depends upon the temperature. The higher the temperature, the more the molecules are spread out and the lower the density. The result is that warm gases rise and cool gases sink.
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