Question

pedro and denise were sharing a snack. pedro drank some hot tea while denise drank ice water. which best explains the difference between the molecules in the hot tea and the ice water?
○ the molecules in the ice water move faster than in hot tea.
○ the molecules in the ice water move slower than in the hot tea.
○ the molecules in the hot tea have less energy than in the ice water.
○ the molecules in the hot tea have the same amount of energy as in the ice water.

Explanation:

The kinetic theory of matter states that temperature is related to the average kinetic energy of molecules. Higher temperature means molecules have more kinetic energy and move faster. Hot tea has a higher temperature than ice water, so molecules in ice water (lower temp) move slower than in hot tea (higher temp).

• First option: Incorrect, ice water molecules move slower than hot tea.
• Second option: Correct, as ice water is colder, its molecules have less kinetic energy (move slower) than hot tea's.
• Third option: Incorrect, hot tea molecules have more energy.
• Fourth option: Incorrect, different temperatures mean different energy levels.

Answer:

The molecules in the ice water move slower than in the hot tea.