States of Matter
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- Created by: SummayaM
- Created on: 08-08-17 17:52
What is constant in Boyle's law?
Temperature and number of moles
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What is the relationship between volume and pressure when temperature is constant?
Inverse proportionality
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What is the graph between pressure and volume at constant temperature called?
An Isotherm
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In Boyle's law, the product of volume and pressure is
constant
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How can the pressure of a gas be read?
By using a manometer
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What happens to an isotherm if we increase the temperature?
Moves further away from both axes
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When the pressure is zero what is the value of the inverse of volume?
Zero
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What are the axes in an isotherm?
Pressure on x axis, volume on y asix
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Boyle's law is applicable to which kind of gases?
Ideal
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What is kept constant in Charles' law?
The pressure
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What is the relationship between volume and temperature when pressure is constant?
Direct proportionality
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By what factor of its original volume does a gas volume increase or decrease for every 1 degree Celsius rise or fall in temperature?
1/273
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What is the condition for Charles' law to be obeyed?
Temperature must be measured in kelvin
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Where does the kelvin scale start from?
-273.16 degrees Celsius
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At what point does a volume-temp graph meet the x axis?
-273.16
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What can be done to increase the slope of a volume-temp graph?
Take a greater mass of the gas because greater the number of moles the greater the volume occupied
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Is zero volume attainable for a real gas?
No
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At what pressure is the Centigrade scale applicable?
1 atmospheric pressure
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What is the melting point of ice in Fahrenheit?
32
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What is the boiling point of water in Fahrenheit?
212
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What is the equation for converting Fahrenheit into Celsius?
C= 5/9 (F-32)
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What are the four units of universal gas constant (with units)?
8.31 J(Nm=J)/Kmol, 0.08dm^3atm/Kmol, 62.4dm^3torr(torr=hgmm)/Kmol, 1.989cal/Kmol
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1 calorie is equal to how many joules?
4.18
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Who put forward the kinetic molecular theory of gases?
Bernoulli
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Who derived the kinetic equation of gases?
Clausius
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Who gave the law of distribution of velocities?
Maxwell
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Who studied the distribution of energies among gas molecules?
Boltzmann
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What is the kinetic equation of a gas
PV=Nmc^2/3
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What is the formula for rms speed of gas molecules?
Crms=|3RT/m
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When talking about gases, Ek=1/2mc^2 represents which motion?
Translational motion
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What is another formula for kinetic energy of a gas incorporating Boltzmann constant?
Ek= 3kT/2
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In an ideal gas, its kelvin temperature is directly proportional to which quantity?
Translational kinetic energy of its molecules
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What is the temperature of a gas a measure of?
The average translational kinetic energy of its molecules
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Temperature in a solid is a measure of what?
Average vibrational kinetic energy
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What is the lowest possible attainable temperature?
10^-5 K
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What is the compressibility factor?
PV/nRT
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What is the compressibility value for an ideal gas?
Unity (1)
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What is the compressibility value for a real gas?
More or less than 1 (More at high pressures)
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Which is more ideal, helium or hydrogen?
Hydrogen
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Does evaporation cause cooling or heating?
Cooling
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Which evaporates faster, gasoline or water and why?
Gasoline because it only has London Dispersion forces
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What is vapor pressure?
It is the pressure exerted by the vapors of a liquid in equilibrium with the liquid at the given temperature
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Does vapor pressure depend on the volume of liquid?
No
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What increases the vapor pressure?
Temperature
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What lowers vapor pressure?
Stronger intermolecular forces
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In terms of vapor pressure, what is boiling point of a liquid?
Vapor pressure=atmospheric pressure
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How many crystal systems are there?
7
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What is the coordination number of sodium in an ionic lattice?
6
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What is the distance between two chloride ions in an ionic solid?
5.63
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When do independent molecules of NaCl exist?
In vapor state
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What is lattice energy?
Enthalpy change when 1 mole of an ionic compound is formed from its gaseous ions
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What is the bond distance in molecular iodine?
271.5
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What is the bond distance in gaseous iodine?
266.6
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What type of overlapping is present in diamond?
sp3-sp3
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Other cards in this set
Card 2
Front
What is the relationship between volume and pressure when temperature is constant?
Back
Inverse proportionality
Card 3
Front
What is the graph between pressure and volume at constant temperature called?
Back
Card 4
Front
In Boyle's law, the product of volume and pressure is
Back
Card 5
Front
How can the pressure of a gas be read?
Back
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