Concept explainers
Which would weigh more—a bottle filled with helium gas, or the same bottle evacuated?
To identify: Whether the bottle filled with helium gas is heavier than the same evacuated bottle.
Answer to Problem 28A
The weight of the bottle filled with helium gas is more.
Explanation of Solution
Introduction:
The weight of the body is the gravitational force acting on the body. The expression for weight is,
Here,
Calculation:
Gases are very light because the particles are far apart, it also have mass.
Weight is the product of mass and the acceleration due to gravity.
Consider the weight of the evacuated bottle as W and the weight of the bottle filled with helium gas as the weight of evacuated bottle with the weight of the gas.
So the weight of the bottle with helium gas is more when compared to the evacuated bottle.
Conclusion:
Thus, the weight of the bottle filled with helium gas is more.
Chapter 20 Solutions
Conceptual Physics: The High School Physics Program
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