A student inflates a balloon for a party inside her house, where the temperature is 23°C. She then takes the balloon outside, where the temperature is 12°C. What most likely will happen to the balloon?

The air inside the balloon cools from 23°C to 12°C outside. Cooler gas particles move more slowly, so the gas takes up less volume when the balloon can contract. The balloon will shrink, so “It will shrink” is correct.

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