Question text
22 Air is trapped in a glass tube by a liquid. When the tube is horizontal, the length of the trapped air is 50mm and its pressure is 1.0 × 105Pa. thread of air liquid thread of liquid air 50 mm 45 mm When the tube is vertical, with the closed end downwards, the length of the trapped air is 45mm. The temperature of the air remains constant. What is the pressure of the trapped air when the tube is vertical? A 0.50 × 105Pa B 0.90 × 105Pa C 1.1 × 105Pa D 1.9 × 105Pa
22 Air is trapped in a glass tube by a liquid.
When the tube is horizontal, the length of the trapped air is 50mm and its pressure is
1.0 × 105Pa.
thread of
air liquid thread of
liquid
air
50 mm 45 mm
When the tube is vertical, with the closed end downwards, the length of the trapped air is 45mm.
The temperature of the air remains constant.
What is the pressure of the trapped air when the tube is vertical?
A 0.50 × 105Pa
B 0.90 × 105Pa
C 1.1 × 105Pa
D 1.9 × 105Pa
Select your answer: