hard · Act science

Two students debate why a sealed bottle of soda goes flat faster when left open. Student A: Carbon dioxide (mathrmCO_2) gas escapes because the pressure above the liquid drops when the cap is removed, and gases are less soluble at lower pressure. Student B: The mathrmCO_2 escapes only because the soda warms to room temperature, and gases are less soluble at higher temperatures. An experimenter measures equal mathrmCO_2 loss from two open bottles kept at the SAME temperature but under different air pressures, with more loss at lower pressure. This result:

1. supports Student A and weakens Student B
2. supports Student B and weakens Student A
3. supports both students equally
4. is consistent with neither student's claim

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