Which of the following statements about surface tension is true?
Practice Questions
1 question
Q1
Which of the following statements about surface tension is true?
It increases with temperature
It is independent of temperature
It decreases with temperature
It is only present in liquids
Surface tension generally decreases with an increase in temperature due to increased molecular motion.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following statements about surface tension is true?
Solution: Surface tension generally decreases with an increase in temperature due to increased molecular motion.
Steps: 4
Step 1: Understand what surface tension is. It is the force that makes the surface of a liquid behave like a stretched elastic sheet.
Step 2: Learn that temperature affects surface tension. When the temperature increases, the molecules in the liquid move faster.
Step 3: Recognize that faster-moving molecules can break the bonds that create surface tension more easily.
Step 4: Conclude that as temperature goes up, surface tension goes down because the increased motion allows the molecules to escape the surface tension.
