Identify Gas Based on Specific Heat Formula and Universal Gas Constant R

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SUMMARY

The discussion focuses on identifying a gas using its specific heat capacities at constant pressure (Cp) and constant volume (Cv) in conjunction with the universal gas constant (R). The relevant equations provided are Q = CvnRT for constant volume and Q = CpnRT for constant pressure. The participants emphasize the need for specific values of Cv and Cp to accurately identify the gas, suggesting that without these values, one must refer to established tables for gas identification.

PREREQUISITES
  • Understanding of specific heat capacities (Cp and Cv)
  • Familiarity with the universal gas constant (R)
  • Knowledge of the ideal gas law
  • Ability to interpret thermodynamic tables
NEXT STEPS
  • Research specific heat capacities of common gases
  • Learn how to use thermodynamic tables for gas identification
  • Explore the ideal gas law and its applications
  • Study the relationship between Cp, Cv, and molecular weight of gases
USEFUL FOR

Students studying thermodynamics, chemists identifying gases, and engineers working with gas properties in various applications.

Firye Stanly
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Homework Statement


For some gas specific heats for constant pressure and constant volume are calculated. Universal gas constant is R. Find the formula the helps identify the gas. Include only constants and given information.

Homework Equations


3. The Attempt at a Solution [/B]
Molar specific heat at constant volume is ##Q=C_vnRT## and for constant pressure is ##Q=C_pnRT##. Is there anything i can use to find that which can help me identify the gas? And what that might be?
 
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Cv and Cp are different for different gases. Do you have specific values? Otherwise I don't see how to proceed apart from "look it up in a table and hope to identify the gas".
 

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