Argon

Chemistry Level 1

A steel tank containing argon gas has additional argon gas pumped into it at constant temperature. Which of the following is definitely true for the gas in the tank?

The gas atoms are separated by a greater average distance. There is a decrease in the pressure exerted by the gas. There is an increase in the volume of the gas. There is no change in the number of gas atoms. The gas atoms travel with the same average speed.

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