Read the following lab report from a chemistry experiment. Determine their hypothesis. We wanted to know how temperature affected the volume of a gas. We investigated this by filling a balloon with air and heating and cooling it, comparing the circumference of the balloon before and after. Our results showed the balloon got bigger when heated and smaller when cooled. These results support our hypothesis. Question 9 options:
A Gases expand when heated and contract when cooled.
B Gases contract when heated and expand when cooled.
C The gas temperature will not impact the circumference of the balloon.
D Volume and temperature are not related.
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option 1 is correct because the kinetic energy of gases increases with increase in temperature and the molecules move faster then it will push the surface of balloon leading to increase in circumference and thereby increasing volume.
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it think the answer is option A. Gases expand when heated and contract when cooled.
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