You Would Like to Drink Water Through a Straw That

question 73

Multiple Choice

You would like to drink water through a straw that is 12 cm long, held vertically. The atmospheric pressure is standard, 101.3 kPa. With one end of the straw just inside your mouth, and the other just beneath the water surface, what maximum pressure inside your mouth would enable you to drink the water? Ignore viscosity.

• A) 94.5 kPa
• B) 102.5 kPa
• C) 100.1 kPa
• D) 89.5 kPa

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Definitions:

Atm

Atmospheric pressure, a unit of measurement representing the pressure exerted by the Earth's atmosphere at sea level.

Container

Any item that can hold materials, products, or substances, preventing their escape or entry of others.

Compressed

Reduced in volume as a result of applied pressure.

Atm

Standard atmosphere, a unit of pressure defined as 101,325 Pa; commonly used as a reference pressure in physics and meteorology.