How do you calculate water vapor pressure?

In chemistry, vapor pressure is the pressure that is exerted on the walls of a sealed container when a substance in it evaporates (converts to a gas). To find the vapor pressure at a given temperature, use the Clausius-Clapeyron equation: ln(P1/P2) = (ΔHvap/R)((1/T2) – (1/T1)).

What is the vapor pressure of water in mmHg?

760 mmHg
For water, the vapor pressure reaches the standard sea level atmospheric pressure of 760 mmHg at 100°C.

What is the vapor pressure of water at 27 C in mmHg?

Temperature oC

Vapor Pressure mm Hg

What is the water vapor pressure in mmHg at 17.0 ºC?

Water Vapor Pressure Chart

Temperature (oC)	Pressure (mm Hg)	Pressure (mm Hg)
19.5	17.0	92.5
20.0	17.5	149.4
20.5	18.1	233.7
21.0	18.6	355.1

Is the vapor pressure of water high or low?

The high surface tension of water (water “sticks” to itself, so it doesn’t “want to” evaporate) means water has a low vapor pressure. Vapor pressure is constant when there is an equilibrium of water molecules moving between the liquid phase and the gaseous phase, in a closed container.

What is the vapor pressure of water at 100c?

one atmosphere
– Therefore the boiling point of water is 100 degree Celsius. – At boiling point the vapor pressure of any liquid is 1 atmosphere. – Therefore the vapor pressure of water at 100 degree Celsius is one atmosphere.

What is the vapor pressure of water at 105 C?

Answer: The water pressure at 105 ∘ C is 908.7641 mmHg. Explanation: The Antoine equation describes the relationship between the temperature and the vapor pressure of pure substances.

What is the pressure of water at 27 C?

Vapor Pressure of Water from 0 °C to 100 °C

T °C	P (torr)
26	25.2
27	26.7
28	28.4
29	30.0

What is the vapor pressure of water at 60 C?

149.4
Vapor Pressure of Water from 0 °C to 100 °C

T °C	P (torr)
60	149.4
61	156.4
62	163.8
63	171.4

What is the vapor pressure of water at 23 degrees Celsius in mmHg?

Water vapor pressure in mm Hg between 15.0°C and 30.8°C
Temperature (°C)	0.0	0.2
23	21.068	21.324
24	22.377	22.648
25	23.756	24.039

What causes the low vapor pressure of water?

The hydrogen bonding between liquid water molecules explains why water has an unusually low vapor pressure. Relatively few molecules of water are capable of escaping the surface of the liquid and enter the vapor phase. Evaporation is slow and thus the vapor exerts a low pressure in a closed container.

What is the Vapour pressure of water in bar?

Vapour pressure of water at 65 0C =0.2501 bar = 2.501 metres.

What is the formula for vapor pressure?

What is the vapor pressure of water at 25 degrees Celsius?

The vapor pressure of pure water at 25 °C is 23.8 torr. 60.0 g/mol) in 75 g of water.

What is the equation for water vapor?

Answer Wiki. Water vapour is the same thing as water and has the same formula, [math]H_2O[/math]. The difference between the liquid and the gas is that in the liquid the particles are moving slowly enough that they form temporary bonds (electromagnetic attractions) which makes them stick together slightly.

What is water vapor pressure?

The water vapour pressure is the partial pressure of water vapour in any gas mixture in equilibrium with solid or liquid water. As for other substances, water vapour pressure is a function of temperature and can be determined with the Clausius–Clapeyron relation. Vapour pressure of water (0–100 °C)