A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?

A. The mass of the balloon increases because the size of the balloon has increased.

B. The mass of the balloon increases because the temperature of the balloon has increased.

C. The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.

D. The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size.

**Please explain why you chose your answer.**

A). No. Mass doesn't just appear out of thin air. The total amount of mass never changes, no matter what you do to it.
B). No. Same reason as (A).
C). Yes. The total amount of mass never changes, no matter what you do to it.
D). No. The amount of mass never changes, no matter what you do to it.

Answered by AL2006 | 2024-06-10

C is the correct answer

Answered by marley101 | 2024-06-10

The correct answer is C: the mass of the balloon stays the same because the gas inside it still has the same mass after warming. This is due to the conservation of mass principle, which states that mass cannot be created or destroyed in a closed system. Therefore, despite a change in temperature causing an expansion in volume, the mass remains unchanged.
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Answered by AL2006 | 2024-10-14