Answer:
a
b
Explanation:
From the question we are told that
The pressure of compressed gas is 
The temperature is 
Generally the perfect gas equation is mathematically represented as
substituting 0.08206 L-atm/mol-K for R and 1 mole for n
We have that
Generally the van der Waals equation is mathematically represented as
![nRT = [P + \frac{n^2 * a }{V^2 } ][V - nb]](https://tex.z-dn.net/?f=nRT%20%20%3D%20%20%5BP%20%2B%20%5Cfrac%7Bn%5E2%20%2A%20a%20%7D%7BV%5E2%20%7D%20%5D%5BV%20-%20nb%5D)
=>![1 * 0.08206 *298 = [197.4 + \frac{1^2 * 1.364}{V^2 } ][V - 1 * 3.19 * 10^{-2}]](https://tex.z-dn.net/?f=1%20%2A%20%200.08206%20%2A298%20%20%3D%20%20%5B197.4%20%2B%20%5Cfrac%7B1%5E2%20%2A%20%201.364%7D%7BV%5E2%20%7D%20%5D%5BV%20-%201%20%2A%203.19%20%2A%2010%5E%7B-2%7D%5D)
=>
Answer:
Hey mate.....
Explanation:
This is ur answer......
<em>While sunlight is the energy source, the greatest force propelling the water cycle is gravity. Gravity is the force of attraction between two objects, and Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water.</em>
Hope it helps!
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Answer:
Silica gel chromatography is a s good method for separating these methyl orange and biphenyl because of the wide difference in their polarity. Biphenyl will give a higher Rf value because it is a non-polar and moves faster on silica gel.
Explanation:
Silica gel is very polar, so polar components (like methyl orange) interact with and move slowly it but non polar components (like biphenyl) move faster on silica gel. Looking at their chemical structures, methyl orange has a polar end while biphenyl is a non-polar hydrocarbon. During silica gel chromatography, the methyl orange will interact with silica gel and move slowly but the biphenyl will move fast on the gel because it does not interact with silica gel. This will result to a very distinct separation of the components.
The biphenyl will therefore have a higher Rf value on TLC because it will move faster and longer on the TLC plate.
Friedrich Mohs devised a scale that tested mineral <span>hardness, </span>which means the resistance of a mineral to being scratched. This scale (from 1 to 10) is known as the Mohs Hardness Test. Objects are used as tools to perform the hardness test:
<span>fingernail (hardness = 2,5).
copper penny (hardness = 3)
glass plate or steel knife (hardness = 5,5)
<span>steel file (hardness = 6,5).
According to this scale </span></span><span>hardness of the mineral is between 5,5 and 6,5.</span>
