Question

which of these will expand the most from heating? (a) gold ( b) mercury (c) water (d) air​

Answer 1

Answer:

(b) mercury is right answer

because mercury is a normal temperature in liquid

Answer 2

(d) Air will expand most from heating.

Explanation:

• The molecules present in the air are not bounded together.
• When the air is hotter, the molecules will move faster.
• The molecules will move apart, so the air will expand when it is heated and contracts when it is cooled.
• The density of air is less because there is more space between the molecules.
• In the hot air balloons, the air is heated and it expands with a less dense by making the balloon to rise.
• Therefore, option d is correct.