Pressure

Question 1

force exerted by colliding molecules per unit area of container walls

Answer 1

Pressure

Question 2

Units of Pressure

Answer 2

1. Standard Atmosphere (atm)
2. Torr or mmHg
3. Pounds per square inch (psi)

Question 3

Commonly used unit for pressure in chemistry

Answer 3

Standard Atmosphere (atm)

Question 4

1 atm is equal to the pressure that supports a column of mercury which is exactly 760 mmHg

Answer 4

Standard Atmosphere (atm)

Question 5

where it represents the pressure exerted by a column mercury which exactly equals to atmosphere

Answer 5

Torr or mmHg

Question 6

Meaning of mmHg

Answer 6

Millimeter of mercury

Question 7

Who invented Barometer?

Answer 7

Evangelista Torricelli

Question 8

used to measure atmospheric pressure

Answer 8

Barometer

Question 9

unit of mmHg is torr, named after the Italian scientist

Answer 9

Evangelista Torricelli

Question 10

The atmospheric pressure at sea level is 14.7 psi

Answer 10

Pounds per square (psi)

Question 11

gas exerts a pressure of 20 psi, means that pressure on the wall of the gas container is 20 pounds or the force per square inch of the unit area

Answer 11

Pounds per square inch (psi)