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Gas concentration vs temperature

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dino:
If I inject 1 g of a gas in a closed volume, why should I expect different ppm(v) at different temperatures?
Shall it be the same ppm(v) regardless of the temperature since I am injecting the same amount of gas in the same closed volume? I think it will be different from the equation of state but I do not understand why. Please help. Any references?

Thank you

Corribus:
1g stays 1g no matter how much the temperature raises, and likewise the mole or mass fraction  But the concentration can change if the volume changes with T.

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