Gassy Vocab
Number of collisions of the molecules with their container is known as...
What is pressure?
Temperature is a measure of what specifically.
What is Kinetic Energy?
In the combined gas law, this unit of temperature is always used.
What is Kelvin?
This is the value for the Heat of Fusion of water as water is freezing.
What is -334 J/g
273 Kelvin or 0˚C and 1 atmosphere, 760 mmHg/torr, or 101.3 kPa are values for...
What is STP (standard temperature and pressure)?
As a liquid vaporizes, this is happening in terms of energy, be specific.
What is Potential Energy is increasing while Kinetic Energy remains the same?
A 200 KPa gas sample in a rigid container has a temperature change from 80 C to 35 C. This is the constant in this system.
What is volume?
This is the difference between Temperature and Heat.
What is heat is the transfer of energy while temperature is the measurement of kinetic energy.
Boyle's Law is...
pressure varies inversely with volume (temp is constant)
An imaginary gas that conforms perfectly to all the assumptions of the kinetic theory.
What is an Ideal Gas?
As you cool a liquid, this is happening in terms of energy.
What is Kinetic Energy is decreasing as Potential Energy remains constant?
A sample of oxygen gas collected in the lab occupies a volume of 2L when its pressure is 1 atm. What volume will the gas occupy at a pressure of 2 atm if the temperature is held constant?
What is 1L?
This is what a Calorimeter is used for.
What is to measure the amount of heat released or absorbed in a reaction?
pressure varies directly with temperature (constant volume)
What is Gay-Lussac's Law
These factors affect vapor pressure.
What are the strength of IMFs and Temperature?
Describe the change in Entropy and Enthalpy in the following:
N2 (g) + 3 H2 (g) ---> 2 NH3 (g)
What is decreasing Entropy with an exothermic reaction (-∆H).
A sample of neon gas occupies a volume of 30L at 300K. What volume will the gas occupy at 600K if the pressure is held constant?
What is 60L?
You would use this equation to solve a problem involving determining the heat released during condensation.
What is q=mHv?
As pressure increase what happens to volume if temperature is held constant
What is decreases
Travel in constant, random, straight line motion. Have no attractive forces (IMF’s). Don’t lose energy when they collide, but they can transfer energy in the collision. They also move faster when hotter. The preceding major points make up this framework.
What is the Kinetic Molecular Theory of Ideal Gases?
Describe the change in Entropy and Enthalpy in the following:
2 H2O (g) + 484 kJ ---> 2 H2 (g) + O2 (g)
What is increasing Entropy with an endothermic reaction (+∆H).
A 2 atm sample with a volume of 1L and a temperature of 200K has a new pressure of 1 atm, and a volume of 2L. This is the final temperature.
What is 200K?
This is the amount of heat produced in joules when the temperature changes from 40C to 10C for a 2g sample of an unknown substance with a specific heat capacity of 0.5 J/g*C.
What is: q=mc∆T
q= (2g)(0.5 J/g*C)(-30C)
q= -30 joules