R in PV=nRT
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Re: R in PV=nRT
It's essentially a constant usually equal to 8.315 JK^-1mol^-1. I am sure it will be on our constant sheet.
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Re: R in PV=nRT
Depending on the units of pressure and volume, R can take on different values. A common example is when you are given P in atm (atmospheres) and V in L (liters). In this case R=0.0821(atm*L)/(mol*K)
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Re: R in PV=nRT
R is a constant in the ideal gas law (PV=nRT) and has multiple unit derrivations that can all be found on the equations and constants sheet! So no need to memorize the value or units!
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Re: R in PV=nRT
R is the gas constant and it is important to note that it differs depending on whether atm, torr, or bar is used for the pressure unit.
Re: R in PV=nRT
Different problems will have different units, so as long as you match the unit to the corresponding R value you should be good. Here is a list with some R values:
0.0821 (atm L)/(mol K)
0.0831 (bar L)/(mol K)
8.314 (J)/(K mol)
62.36 (torr L)/(mol K) or (mmHg L)/(mol K)
1.987 (cal)/ (mol K)
0.0821 (atm L)/(mol K)
0.0831 (bar L)/(mol K)
8.314 (J)/(K mol)
62.36 (torr L)/(mol K) or (mmHg L)/(mol K)
1.987 (cal)/ (mol K)
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Re: R in PV=nRT
PV=nRT is the Ideal Gas Law equation. To answer your question, the R is the ideal gas law constant and there are varying corresponding values (for the most part, problems will specify which value to use.) Some examples can include bar or atm.
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Re: R in PV=nRT
The ideal gas law is PV = nRT, where n is the number of moles, and R is universal gas constant. The value of R depends on the units involved, but is usually stated with S.I. units as: R = 8.314 J/mol. It is just a constant to use in the equation.
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Re: R in PV=nRT
R is a constant known as the gas constant. Its units are represented as Joules . mol^-1 and various other units such as atmospheres.
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Re: R in PV=nRT
R is the universal gas constant, sometimes known as the Regnault constant. The value of the R constant is 8.3144598 J/mol·K.
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Re: R in PV=nRT
Dr. Lavelle's website also provides the constants and formulas that we will receive for test and exams.
https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf
https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf
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Re: R in PV=nRT
R is the Universal Gas Constant. It is described in the textbook as well. The values can be in different units of pressure. It is 8.314 J/molK, 0.082L-atm/ molK, or 62.36L-torr/molK.
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Re: R in PV=nRT
R is a gas constant and the numerical value depends on the units being used to measure the gas
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Re: R in PV=nRT
R is a gas constant that is on the constants and formulas sheet that we get on tests (also on Lavelle's website)
R= 8.314 J·K-1·mol-1 = 8.206 x 10-2 L·atm·K-1·mol-1 = 8.314 x 10-2 L·bar·K-1·mol-1= 62.364 L·Torr·K-1·mol-1
R= 8.314 J·K-1·mol-1 = 8.206 x 10-2 L·atm·K-1·mol-1 = 8.314 x 10-2 L·bar·K-1·mol-1= 62.364 L·Torr·K-1·mol-1
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Re: R in PV=nRT
There are different values and units that will vary based on the units of the other variables given in a certain equation. We will probably get these on the formula sheet just like lavelle's 14a
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Re: R in PV=nRT
It's a constant and should be given with any exams so I don't think we need to worry too much about it.
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Re: R in PV=nRT
The R represents the ideal gas constant.
Depending on units, it is equal to R=8.314 J·K-1·mol-1= = 8.206 x 10-2 L·atm·K-1·mol-1 = 8.314 x 10-2 L·bar·K-1·mol-1.
Depending on units, it is equal to R=8.314 J·K-1·mol-1= = 8.206 x 10-2 L·atm·K-1·mol-1 = 8.314 x 10-2 L·bar·K-1·mol-1.
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Re: R in PV=nRT
R is the gas constant. I believe it will be given on the equation/constant sheet on tests.
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Re: R in PV=nRT
it is the gas constant and can either be seen as 8.314 J/mol·K or 0.082057 L⋅atm/mol⋅K
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Re: R in PV=nRT
R refers to the gas constant which depends on the units you are using for your equation.
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Re: R in PV=nRT
Millicent Navarro 1I wrote:PV=nRT is the Ideal Gas Law equation. To answer your question, the R is the ideal gas law constant and there are varying corresponding values (for the most part, problems will specify which value to use.) Some examples can include bar or atm.
When do we use the ideal gas law equation? How does it relate to Kp?
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Re: R in PV=nRT
The R is a constant, you can find it on the equation sheet. Just pay attention to which unit of pressure they are using.
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Re: R in PV=nRT
R is the gas constant, and depending on the units you have in your problem you have to choose a certain R value.
R = 8.314 J·K-1·mol-1 = 8.206 x 10-2 L·atm·K-1·mol-1 = 8.314 x 10-2 L·bar·K-1·mol-1
= 62.364 L·Torr·K-1·mol-1
R = 8.314 J·K-1·mol-1 = 8.206 x 10-2 L·atm·K-1·mol-1 = 8.314 x 10-2 L·bar·K-1·mol-1
= 62.364 L·Torr·K-1·mol-1
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