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MEASUREMENT OF GAMMA FOR AIR, MONATOMIC, DIATOMIC & POLYATOM
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MEASUREMENT OF GAMMA FOR AIR, MONATOMIC, DIATOMIC & POLYATOMIC GASES
Introduction
Team Members
Workshop: Friday 4-6pm
Team number: 9
SEB115
Dylan Manton-Williams n8910090
Jarrod Isaacs n9727345
Daniel van Driel n9708383
Minami Naka n9740431
Sebastien Hansmar n7659288
Umaima Shafiq n9731547
Aim
The aim of the conducted experimental report was to measure the gamma () for air, monatomic, diatomic and polyatomic gases within a system and also to further examine adiabatic and isothermal procedures within thermodynamics.
Background
Conclusion
Dylan Manton-Williams
What is Gamma (y)?
- Ratio of the heat of a gas at a constant pressure and volume
Adiabatic
- Temperature decrease/increase without loss of heat and pressure.
Isothermal
- Change to system when Temperature is constant.
Gas Variants Involved
- Air, monoatomic, diatomic, polyatomoic
Thermodynamics
- Interactions between heat and temperature.
Real World Application
- Gas Engines
Dylan Manton-Williams
Was the aim achieved?
Aim - Investigate the gamma for different types of gasses with different molecular structures within concepts of thermodynamics was definitely achieved.
Umaima Shafiq
Discussion and Analysis
Correlations
Data Analysis
Results
Degrees of Freedom
- A greater degree of freedom results in a higher molecular movement.
Molecular Energies
- A higher molecular movement results in a lower gamma [y] value.
Was the aim of the experiment achieved?
Visible Trends and Patterns
Table 1. Gamma [y] Values of Gases
Sebastien Hansmar
Figure #1. Natural Logarithm of Pressure [kPa] versus Natural Logarithm of Volume [mL] for Gases
Unexpected deviation for the slow Air run and Argon
Diatomics are meant to have similar Gamma values
Minami Naka
Errors and Suggested Improvements
Statistical Variations
- Variations <16.2%
Testing Parameters
- One trial for each gas - no averages
Physical Restrictions
- Human used to impart a consistent linear force onto the lever - use hydraulic robot instead
-Keep initial gas pressures constant
Umaima Shafiq
Trend-line is theoretically linear
Varied starting pressures between gases
Daniel van Driel
Methodology and Equipment
Equipment Preparation
Physical Set-up for Gases
Computer Data Output
Procedure Continued
Procedure
Repeated Procedures for each Gas
Steps involved in measuring the Gases
Jarrod Isaacs