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A sample of gas has a volume of 300 cc at 27°C under a pressure of 620 mm. What will its volume be at 47°C and 640 mm pressure?

1. 260 cc
2. 310 cc
3. 390 cc
4. 450 cc

Correct answer: 310 cc

Solution

The correct option is derived from applying the combined gas law, which states that the volume of a gas is directly proportional to its temperature and inversely proportional to its pressure. By substituting the initial and final conditions into the equation, the calculations yield a final volume of 310 cc.

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