Pressure

Question 1

How many pascal is 1 bar?

Answer 1

10 to the power of 5

Question 2

How many pascal is 1 atm?

Answer 2

1,01 * 10 to the power of 5 Pa

Question 3

How many pascal is 1 mmHg?

Answer 3

133 Pa

Question 4

What is the hydrostatic paradox?

Answer 4

Hydrostatic pressure depends only on the density and the height of the fluid - it is independent on the shape of the container

The pressure on the bottom of the container is the same, if the height is the same.

Question 5

What is partial pressure?

Answer 5

In a mix of gases, each gas has a partial pressure; an hypothetical pressure of that gas if it alone occupied the volume of the mix at the same temperature.

Question 6

What is hydrostatic pressure?

Formula and SI unit

Answer 6

Pressure in gases and fluids arising due to gravity.

P= density * gravity * height (pascal)

Question 7

Density:

Answer 7

Density (p) = mass /volume (kg/m3 or g/cm3)

Question 8

How many kg/m3 is 1 g/cm3?

Answer 8

1 kg/m3 = 1000g/m3

Question 9

Pressure: formula and SI unit

Answer 9

Pressure = Force/Area. Pascal

Question 10

How many cm2 is 1 m2?

Answer 10

1 m2 = 10 000 cm2

Question 11

Volume: formula and SI unit

Answer 11

V= Area * height (liters)

V= m/density (liters)

Question 12

How many cm2 is 1 liter?

How many m3 is 1 liter?

Answer 12

1 liter = 1000 cm3

1 liter = 0,001 m3

Question 13

How many m3 is 10cm * 10cm * 10cm?

Answer 13

10cm * 10cm* 10cm = 10cm3

10cm3 = 0.00001 m3.

Question 14

Force (in pressure)

Answer 14

F = pascal* area

Question 15

What is the formula for pressure and SI uniut?

Answer 15

P = F/area (pascal)

Or

PV = nRT

Question 16

What is true about about the pressure in fluids and gases?

Answer 16

They are directly proportional to depth.