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Chapter 10: Problem 1

Mars has an average atmospheric pressure of 0.007 atm. Would it be easier or harder to drink from a straw on Mars than on Earth? Explain. [Section 10.2\(]\)

Short Answer

Expert verified
It would be easier to drink from a straw on Mars than on Earth, due to Mars's lower atmospheric pressure of 0.007 atm compared to Earth's 1 atm. This lower pressure requires less force to create a pressure difference between the inside and outside of the straw, making the process of drinking easier on Mars.

Step by step solution

01

1. Compare Atmospheric Pressures on Earth and Mars

Earth has an average atmospheric pressure of 1 atm, while Mars has an average atmospheric pressure of 0.007 atm. This means that Mars has a much lower atmospheric pressure than Earth.
02

2. Understand The Process of Drinking from a Straw

When one drinks from a straw, they suck the air out of the straw, creating a lower pressure inside the straw than the surrounding atmospheric pressure. This difference in pressure causes the liquid to be pushed up into the straw and into the drinker's mouth.
03

3. Analyze the Relationship between Atmospheric Pressure and the Drinking Process

Lowering the pressure inside the straw requires pulling against the atmospheric pressure, making it the resisting force. A higher atmospheric pressure requires more force to pull against it, while a lower atmospheric pressure means less force is needed.
04

4. Determine the Difficulty of Drinking from a Straw on Mars

Since Mars has a lower atmospheric pressure (0.007 atm) compared to Earth (1 atm), the force needed to pull against Mars's atmospheric pressure would be significantly less. This means creating a pressure difference between the inside and outside of the straw would be easier on Mars than on Earth.
05

5. Conclusion: Drinking from a Straw on Mars vs. Earth

Due to Mars's lower atmospheric pressure, it would be easier to drink from a straw on Mars than on Earth. The lowered pressure on Mars requires less force to create a pressure difference, making the process easier.

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Most popular questions from this chapter

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