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At a height of 300 km above Earth’s surface, an astronaut
Chapter 6, Problem 89P(choose chapter or problem)
QUESTION: Problem 89P
At a height of 300 km above Earth’s surface, an astronaut finds that the atmospheric pressure is about 10−8 mmHg and the temperature is 500 K. How many molecules of gas are there per milliliter at this altitude?
Questions & Answers
QUESTION: Problem 89P
At a height of 300 km above Earth’s surface, an astronaut finds that the atmospheric pressure is about 10−8 mmHg and the temperature is 500 K. How many molecules of gas are there per milliliter at this altitude?
ANSWER:
Solution 89P
Here we have to calculate how many molecules of gas are there per milliliter at this altitude.
Step 1
Given:
Temperature = 500 K
Pressure = 10-8 mm Hg
The number of moles to volume ratio can be calculated by using ideal gas equation,
PV = nRT
Or,