Sample Questions and Their Answers
Using kinetic theory, explain Boyle’s law for an ideal gas.
Question.
Using kinetic theory, explain Boyle’s law for an ideal gas.
Answer.
Reducing the volume increases the number of collisions of gas particles with the walls of the container per unit time. Therefore, the rate of change of momentum will also increase leading an increase in pressure.
A needle may float on clean water but sinks when a detergent is added. Explain.
Question.
A needle may float on clean water but sinks when a detergent is added. Explain.
Answer.
Clean water has a high surface tension addition of detergent reduces or lowers the surface tension.