by Pepp39


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What is the absolute zero in Kelvin?
0
What is the absolute zero in C?
-273
What is the absolute zero in F?
-460
What iss the freezing point of water in K, C, F?
273, 0, 32
What is the boiling point of water in K, C, F?
373, 100, 212
What is temperature?
Temperature is the measure of the random kinetic energy of the molecules of a substance.
What is the formula to find Tc?
Tc = K - 273
Tc = 5/9Tf - 32
What is the formula to find Tf?
Tf = 9/5Tc + 32
What is the formula to find TK?
Tk = Tc + 273
What happens when solids are heated?
When solids are heated they lengthen.
What happens when liquids are heated?
When liquids are heated they expand.
What is thermal; expansion?
It is what happens to solids when they are heated.
What do you think of when you see this Δ symbol?
Tfinal - Tinitial
What is the formula for thermal expansion?
ΔL = αLΔT
What is the formual for volume expansion?
ΔV = VΔT
What is alpha?
Coefficient of linear expansion
What is Beta?
Coefficient of volume expansion
What is conduction?
heat transfer by contact
What is convection?
heat transfer by mass motion
What is radiation?
heat transfer by electromagnetic waves
What formula is used to determine heat gained or lost in a system?
Q=mcΔT
What is the specific heat of a substance?
The specific heat of a substance is the amount of heat required to raised 1kg of substance to 1K or 1°C
What is the specific heat of water?
4190 Joules/kg x C
1.0 X 103 cal/kg x C
What is the coefficient of linear expansion?
Alpha
What is the coefficient of volume expansion?
Beta or 3 alpha
What is pressure?
The amount of force exerted per unit of area.
What is volume?
How much space the gas occupies.
What are moles?
Measure of the amount of particles in a sample.
What is molar mass?
The mass of one mole of a substance.
What is the universal gas constant?
R = 8.31 J/mol x K
What is the Boltzman's constant?
Kb = 1.38 x 10-23 J/K
What is the standard atm?
1.0 x 105 N/m2
1.013 x 105 Pascals
What does Boyle's law show a relationship between?
Pressure and volume of an ideal gas
Pressure is measured in what?
Pascals 1P = 1N/m2
What does Boyle's law show a relationship between?
Pressure and volume of an ideal gas.
What happens to the volume of an ideal gas at constant T if you triple the pressure on it?
Pressure and volume are inversely proportional if you triple one you divide the other variable by 3.  Thus tripling pressure will reduce volume by 1/3.
What law describes the volume of an ideal gas at constant pressure that varies directly with its K temp?
Charles/Boyle's Law
P1V1/T1=P2V2/T2 is describing what?
Charles and Boyle's Law
PV=nrt represents what?
P = pressure, V = volume, n = moles, R = universal gas constant
PV=Nk(B)T represents what?
N = number of particles, Kb is Boltzmann's constant
Vrms=√3KbT/m represents what?
m is the mass of each molecule and Vrms is the root-mean-square speed
Vrms=√3RT/M represents what?
M is the Molar mass of the gas
What is thermodynamics?
Thermodynamics is the study of the conversion of energy between heat and other forms of energy
What is the first law of thermodynamics?
First law of thermodynamics tells us that when heat is transferred to a system it can increase the internal energy of a system and/or it can be used by the system to do work.
When heat is transferred to a system what happens to the internal energy of that system and what can it do?
Used to do work
What is the formula to determine internal energy of a system?
Q = ΔU + W, Q is the heat gained in the system, U = internal energy, W=work
In what direction will heat travel?
Hot to cold
What happens to entropy or disorder of any closed system?
True or false no cyclic process that converts heat entirely into work is possible?
True
Why according to our current knowledge is it impossible to construct a perpetual motion machine?
Because no system is 100% efficient
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