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Chemistry

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Edyth Anderson

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Cards in this guide (20)
What is pressure

Pressure is the amount of force pressing on something. Air pressure is the force with which air presses. The force comes from the bombardment of the moving air particles.

A compelling or refracting influence ie. peer pressuere.

apex- the force of gas molecules hitting their container

Pressure is the continual physical force that is exerted against an object.
The amount of force acting per unit area is called pressure
What causes pressure

Pressure is caused by collisions of gas molecules with surfaces or other gas molecules.

Why are aircraft fuel tanks designed to be located in the wing

To utilize the wing space for the fuel,

What is R in the ideal gas law equation

the ideal gas constant

D:

What would heating a sealed glass jar do

Increase the pressure of the gas inside

What relationship does Charles's law describe

The relationship between temperature and volume

What would cause the pressure of a gas to increase

An increase in temperature or a decrease in volume would call the pressure to increase.

Apex- increasing the number of gas particles

Which intermolecular force would affect the boiling point the least

Van der Waals forces

What force is activated because of the mass of the airplane and works to pull an airplane to the ground

Gravity

What does the ideal gas law describe

Charles' Law and other observations of gases are incorporated into the Ideal Gas Law. The Ideal Gas Law states that in an ideal gas the relationship between pressure, volume, temperature, and mass as PV = nRT, where P is pressure, V is volume, n is the number of moles (a measure of mass), R is the gas constant, and T is temperature. While this law specifically applies to ideal gases, most gases approximate the Ideal Gas Law under most conditions. Of particular note is the inclusion of density (mass and volume) and temperature, indicating a relationship between these three properties.


The relationship between the pressure, volume, temperature, and amount of a gas ~APEX

What is the pressure of 4 moles of helium in a 50 L tank at 308 K

2.02 atm

What does Dalton's Law of Partial Pressures say

The total pressure of a gas mixture is the sum of the individual pressures.

As pilots get closer to the speed of sound

When pilots get closer to the speed of sound it gets harder for the plane to fly. It could also depend on the how the pilot flees.

A concentration unit expressed in units of moles of solute per kilogram of solvent

This is called molality.

Which molecular solid would have the highest melting point

A solid that has hydrogen bonding would melt the easiest.

Increasing an airplane's speed or wing size does which of the following

Generates more lifting force

What is a homogeneous mixture equivalent to

A homogeneous mixture has only one phase.

What will result from increasing the temperature of gas

Increasing the temperature of gas the volume increase.

What is the molality of a solution that has 4 mol of KCl in 0.800 kg of water A.

The molality is 5.

Which of the following is an electrolyte solution

The answer is "Ions in water" on Apex

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