SC-174
Density
Lower Sec Science · Secondary 1 · Medium · Density
A gas is trapped in a sealed syringe. When the plunger is pushed in, the gas volume decreases but its mass stays the same. What happens to the density of the gas?
(Concept: density = mass ÷ volume.)
(Concept: density = mass ÷ volume.)
- It increases because the same mass now occupies a smaller volume.
- It decreases because the gas is being compressed.
- It stays the same because the gas is still the same substance.
- It becomes zero because gases have no fixed volume.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.