Aboy with pneumonia has lungs with a volume of 1.9 l that fill with 0.080 mol of air when he inhales. when he exhales, his lung volume decreases to 1.5 l. enter the number of moles of gas that remain in his lungs after he exhales. assume constant temperature and pressure. g

The number of moles of gas remaining in the lungs is 0.063 moles

Explanation:

The relationship of number of moles and volume at constant temperature and pressure was given by Avogadro's law. This law states that volume is directly proportional to number of moles at constant temperature and pressure.

The equation used to calculate number of moles is given by:

where,

are the initial volume and number of moles

are the final volume and number of moles

We are given:

Putting values in above equation, we get:

Hence, the number of moles of gas remaining in the lungs is 0.063 moles

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as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

i think it is true since you can test the answer and can use observations to complete it.