Pressure

Question 1

The pressure inside a gas cylinder is 3,506 mmHg. How many atmospheres of pressure is the gas exerting on the cylinder?

Revolt · Accepted Answer

4.613 atm

Question 2

If the pressure of a gas is 2.42 atm, what is its pressure in kPa?

Revolt · Accepted Answer

245 kPa

Question 3

A factory at a low elevation ships bags of popcorn to cities at high elevations. Why does the factory manager need to monitor the amount of air in each bag?

Revolt · Accepted Answer

Too many molecules can cause the bag to pop as it moves from a high pressure to a low pressure.

Question 4

Which unit of pressure is derived from the early barometers used to measure pressure?

Revolt · Accepted Answer

mmHg

Question 5

How many atm are in 1,520 mmHg?

Revolt · Accepted Answer

2.00 atm

Question 6

Which sequence describes the result of increasing the number of gas particles in a container?

Revolt · Accepted Answer

more collisions ® greater collision force ® higher pressure

Question 7

An empty plastic bottle is sealed in a cool room and then moved to a very hot room. What can best be stated about the air pressure inside the bottle when the bottle reaches room temperature?

Revolt · Accepted Answer

It is higher than the pressure on the outside of the bottle.

Question 8

A hiker seals a plastic bag that contains dried fruits before he climbs a mountain. What will most likely happen to the plastic bag as the hiker reaches the top of the mountain?

Revolt · Accepted Answer

The bag will expand.

Question 9

Why does a plastic bottle that is sealed at a high altitude change its shape when it is taken to a low altitude?

Revolt · Accepted Answer

The number of gas molecules that strike the outside of the bottle increases as altitude decreases.

Question 10

Which corresponds to a pressure of 1.23 atm?

Revolt · Accepted Answer

935 mmHg

Pressure Answers

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