The diagram above illustrates trapped air in a ... - WAEC Physics 2012 Question
The diagram above illustrates trapped air in a syringe placed in water that is gradually heated. It is observed that the piston rises as the temperature of the water rises. Which of the following statements explains this observation?
A
frequency of collision of trapped air molecules with walls of the syringe is more
B
molecules of trapped air expands more
C
speed of the trapped air molecules decreases
D
number of molecules of trapped air increases
correct option: b
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