According to Boyle's law, how would you reduce a gas's volume?
by decreasing its pressure
by decreasing its temperature
by increasing its pressure
by increasing its temperature
Please help ASAP!! tysm?
- Posted:
- 3+ months ago by prackham16
- Topics:
- gas, temperature, pressure, law, volume, boyle, laws
Details:
Answers (1)
The combined gas law is completely defined by one equation.
PV = NRT
where
P = pressure
V = volume
N = quantity of gas
R = a constant depending on what units you want to use
T = absolute temperature
You need to be perfectly prepared in math to do well in physics. Get a ruler in your hands. Measure things until you start to understand how a ruler works. Measure some stuff and figure out where the center is. Say you measure a book and it's 7/8" thick. You look at your ruler and see that every eighth is divided into two sixteenths, so obviously half of 7/8" is going to be 7/16". If you write that out you have 1/2 x 7/8 = 7/16. And you notice that 1/2 is divided into 2/4 and then into 4/8 and so on, so you can convert anything to anything by multiplying all the numbers on top and then all the numbers on bottom.
Other rulers are divided into 10 and 100 parts. But an inch is still an inch, so anything on one ruler can be translated to the other ruler. A half inch on one ruler is 5/10 or 50/100 on the other. An eighth inch is just 12.5 marks when you have 100 marks per inch. A metric ruler divides an inch into 25.4 parts, so a half inch would be 12.7 of those parts. Pretty simple, isn't it? Practice this a bit and people will think you went to wizard school.
Now, you might wonder why I suggest a ruler when you ask about a gas. Well, it's because you have not been taught the basis of simple arithmetic. After using a ruler for a while, it is pretty obvious that if an inch is divided into 1/4 inch spaces there will be four spaces. If it is divided into 1/8 inch spaces there will be 8 spaces. As the fraction gets smaller, the number of spaces on the ruler gets bigger. That is what you are doing with the gas law: the equation is written V=RT/P and as P goes down, V goes up, and there is your answer. But you have to practice with the ruler before you start to see such obvious things. Most people get through school without ever having to use a ruler, and that is why they don't understand these things.