The hydrostatic pressure of 1m depth of water at 20°C will be expressed in (mm) of mercury. What is the hydrostatic pressure of freshwater? ?

The hydrostatic pressure of 1m depth of water can be calculated using the formula:

P = ρgh

Where:
P = hydrostatic pressure
ρ = density of water (1000 kg/m^3)
g = acceleration due to gravity (9.81 m/s^2)
h = depth of water (1m)

Plugging in the values:

P = 1000 kg/m^3 * 9.81 m/s^2 * 1m
P = 9810 N/m^2

To convert this pressure to mm of mercury, we can use the conversion factor:

1 N/m^2 = 0.00750062 mmHg

So, the hydrostatic pressure of 1m depth of water at 20°C is:

9810 N/m^2 * 0.00750062 mmHg/Nm^2 = 73.58 mmHg

Therefore, the hydrostatic pressure of freshwater at 20°C is 73.58 mmHg.

Step 1: Calculate the hydrostatic pressure of 1 m of water at 20°C

Hydrostatic pressure (P) = ρgh

where:

ρ = density of water at 20°C = 998 kg/m³
g = acceleration due to gravity = 9.81 m/s²
h = depth of water = 1 m

P = 998 kg/m³ - 9.81 m/s² - 1 m = 9800 Pa

Step 2: Convert Pa to mm of mercury (mmHg)

1 Pa = 0.0075006 mmHg

P (mmHg) = 9800 Pa - 0.0075006 mmHg/Pa = 73.55 mmHg

Therefore, the hydrostatic pressure of 1 m depth of water at 20°C is 73.55 mm of mercury.

Hydrostatic pressure of freshwater is 73.55 mm of mercury