Calculate Volume of Gass at Different Pressure & Temperature

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SUMMARY

This discussion focuses on calculating the volume of gas under varying pressure and temperature conditions, specifically using the ideal gas law and hydraulic principles. Key formulas mentioned include the force relationship F1/d1² = F2/d2² for hydraulic systems and the ideal gas law pV = nRT for gas calculations. The user seeks to determine mass and pressure based on given dimensions and forces, as well as the density of ammonia (NH3) at specific conditions. The conversation emphasizes the importance of understanding pressure calculations in hydraulic systems and gas behavior under different temperatures.

PREREQUISITES
  • Understanding of hydraulic systems and Pascal's principle
  • Familiarity with the ideal gas law (pV = nRT)
  • Knowledge of basic geometry for calculating areas of circular pistons
  • Ability to perform unit conversions, particularly for pressure and volume
NEXT STEPS
  • Study hydraulic system calculations, focusing on force and pressure relationships
  • Learn about the ideal gas law and its applications in real-world scenarios
  • Explore the properties of ammonia (NH3) under various temperature and pressure conditions
  • Investigate how to calculate the area of circular pistons and its relevance in hydraulic applications
USEFUL FOR

Engineers, physicists, and students in mechanical or chemical engineering who are involved in fluid dynamics, gas behavior analysis, or hydraulic system design will benefit from this discussion.

klebsiella
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Hi all ... thanks in advance to anyone who helps me out ...it should be simple , i need some formulas .. for example

1. Find the mass of an cargo that can be moved by using a hydraulic piston pump if D=1,7m and d=400mm=0,4m and force is 300hN. If force goes up by 10% find the pressure and new mass

I remember the main one F1/d1^2= F2/d2^2

It's easy to find F2 but how to find a mass and pressure?

Is pressure p = F2/A2 where A2 is D^2*Pi / 4 ? and how to find this "d" in A2 ?

And second question is on which pressure will NH3 have density of 1.65g/dm3 if temperature is -30C or 243,15K

pV=nRT .. right?

Or how many liters of gass can we get if volume of gass, on temperature of 333,15K and p of 0.7, is 250l.
 
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Hint: pistons are usually circular. Think you can find the pressure knowing the diameter of the piston and the applied force?
 
maybe yes no ?
 

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