-
What is the definition of Vapor Pressure?
a measure of the collisions of the molecules with the container
-
What is saturated vapor pressure?
In a closed container, when the number of molecules entering the gas phase equals the number of molecules entering the liquid phase
-
What is volatility?
the tendency of a liquid to enter the gas/vapor phase
-
vapor pressure and temperature are ________ related
directly
As temp increases, vapor pressure increases. As temp decreases, vapor pressure decreases.
-
How does a change in atmospheric pressure affect the boiling point of a substance?
As atmospheric pressure decreases, so does it's boiling point.
-
What is boiling point?
The temperature at which vapor pressure = atmospheric pressure.
-
Why does it take longer to cook things in areas with lower atmospheric pressures?
Because the boiling point is where vapor pressure = atmospheric pressure. Since atmospheric pressure is lower, liquid boils at a lower temperature, therefore taking longer to cook things.
-
What 3 things does vaporization of an anesthetic agent depend upon?
- 1) vapor pressure of the agentĀ
- 2) ambient temperature
- 3) amount of carrier gas flow
-
If you decrease the temperature of a liquid agent, what will happen to the rate of evaporation?
it will decrease
-
What happens to the temperature of the liquid and container as an agent evaporates?
It cools due to the loss of kinetic energy
-
What are two characteristics of a vaporizer that help prevent slowing of the evaporative rate?
- 1) high thermal conductivity (steals heat from environment)
- 2) high thermal capacity (keeps heat from environment)
-
What is the saturated vapor pressure and boiling point of halothane at STP?
-
What is the saturated vapor pressure and boiling point of Isoflurane @ STP?
-
What is the saturated vapor pressure and boiling point of sevoflurane at STP?
-
What is the saturated vapor pressure and boiling point of Desflurane at STP?
-
What 2 things does saturated vapor pressure depend upon?
- 1) agent
- 2) ambient temperature
-
If agent 1 has a saturated vapor pressure of 100 mm Hg and agent 2 has a saturated vapor pressure of 200, which agent is more volatile?
agent 2 - volatility is directly related to saturated vapor pressure
-
If agent 1 is very volatile and agent 2 is less volatile, which agent will have a higher boiling point?
agent 2 - volatility is inversely related to boiling point
|
|