What volume would this air occupy at STP?

  • Thread starter Thread starter Bigworldjust
  • Start date Start date
  • Tags Tags
    Air Volume
AI Thread Summary
The discussion revolves around calculating the volume of air from a compressed tank at standard temperature and pressure (STP). The user initially calculated the volume using the ideal gas law but arrived at an incorrect value of 0.0056 m³. After further consideration and checking Avogadro's law, the user corrected the conversion, determining the correct volume to be 0.56 m³. The conversation highlights the importance of accurate unit conversion in gas law calculations. Overall, the correct volume of air at STP from the tank is 0.56 m³.
Bigworldjust
Messages
53
Reaction score
0

Homework Statement



A 12.0 cm-diameter compressed-air tank is 50.0 cm tall. The pressure at 30.0 C is 110 atm .

What volume would this air occupy at STP?

Homework Equations



V=nRT/P


The Attempt at a Solution



The first question asked to find the amount of moles of air in the tank, and got it right with an answer of 25. So I plugged in:

(25mols)(.0821)(273K)/(1*10^5)

And got .0056 m^3, but that seems to be wrong. Any help would be appreciated. Thanks!
 
Physics news on Phys.org
Check into Avogadro's law. An ideal gas occupies a specific number of litres per mole at STP.
 
cepheid said:
Check into Avogadro's law. An ideal gas occupies a specific number of litres per mole at STP.

Ah okay, so I converted wrong. It would be .56 m^3. Thanks!
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Thread 'Egg Drop Challenge! Need ideas for winning designs'

I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
View full post »

Similar threads

Understanding Molar Volume at STP
Replies
2
Views
1K
Adiabatic compressed air and energy calculations
2
Replies
60
Views
7K
What is the speed of air flow in a pipe driven by compressed air for 12 minutes?
Replies
24
Views
3K
Using Compressed Air Tools Outdoors: Can it be Done?
Replies
1
Views
2K
Pump compresses air into a tank
Replies
4
Views
1K
Calculating the volume that a compressed mass of air will occupy.
Replies
11
Views
3K
What Is the Temperature of Compressed Air in a Diesel Cylinder?
Replies
3
Views
2K
Calculate this value of 1 mole at STP with C_V
Replies
22
Views
2K
How Much Air Escapes from a Heated Compressed Air Cylinder?
Replies
3
Views
4K
Finding particulate matter emissions
Replies
7
Views
3K

Hot Threads

Recent Insights

Back
Top