Another way you could solve problem b in Example 2 at 14:17 is shown below: The slope of P vs V^-1 = P/(1/V) which is equal to PV. Rearranging PV=nRT to solve for moles we get: n=PV/RT where R=8.31 and T = 330K Using the graph, let's choose the point where P = 1*10^5 Pa and V^-1= 2m^3 But the clever maneuver you have to do is to realize that if V^-1 = 2 then V = 1/V^-1 = 1/2 Plugging in the values: (1*10^5)(1/2)/(8.31)(330) = 18.2 moles
In Example 1 Math Problem. The formula for the volume of the cylinder wouldn't be πr2h? Although the answer is 6.3 when using this formula. Love your videos. Great Work.
I appreciate your help. I have two questions 1. the ideal gas equation is pv =nRT , what is the ral gas eauation? 2. if you can please upload atmospheric physics like atmospheric wave, enery exchange between troposphere and stratosphere like that
19:10, for Example 1: Proportional Reasoning Problems) n_B, why doesn't that equal to (p_B)(3V_B)(R)^-1(400K)^-1? What happened to the 3V_B and why did it go down to V_B in the equation for n_B?
@@AndyMasley after solving I am arriving at p=7931479.5 I even cross checked the values I entered and even did this on four different calculators. I am getting the exact same value. This is for Example 1 of math question
Another way you could solve problem b in Example 2 at 14:17 is shown below:
The slope of P vs V^-1 = P/(1/V) which is equal to PV.
Rearranging PV=nRT to solve for moles we get:
n=PV/RT
where R=8.31 and T = 330K
Using the graph, let's choose the point where P = 1*10^5 Pa and V^-1= 2m^3
But the clever maneuver you have to do is to realize that if V^-1 = 2 then V = 1/V^-1 = 1/2
Plugging in the values:
(1*10^5)(1/2)/(8.31)(330) = 18.2 moles
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Volume of a a cylinder at 14:47 is wrong it should be (cylinder_volume = π * cylinder_radius² * cylinder_height)
they put the height
In Example 1 Math Problem. The formula for the volume of the cylinder wouldn't be πr2h? Although the answer is 6.3 when using this formula. Love your videos. Great Work.
Fantastic Material. Grateful to you
I appreciate your help. I have two questions
1. the ideal gas equation is pv =nRT , what is the ral gas eauation?
2. if you can please upload atmospheric physics like atmospheric wave, enery exchange between troposphere and stratosphere like that
19:10, for Example 1: Proportional Reasoning Problems) n_B, why doesn't that equal to (p_B)(3V_B)(R)^-1(400K)^-1? What happened to the 3V_B and why did it go down to V_B in the equation for n_B?
cylinder area formula = pi*radius^2*height
shouldn't that be 3/4 instead of 12/1? when we simplify, it should be 3/4. This is for Example 1 for the ratio of mass question
Both the 100k and 400k are raised to the power of -1, so the fraction is (1/100k)/(1/400k) which is equal to 4 in the numerator
@@AndyMasley after solving I am arriving at p=7931479.5 I even cross checked the values I entered and even did this on four different calculators. I am getting the exact same value. This is for Example 1 of math question
Nice
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