Enthelpy change for different processes.

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SUMMARY

The enthalpy change for different thermodynamic processes can be calculated, specifically for constant volume, isothermal, and adiabatic processes. The discussion highlights that a solid heated at constant volume, a chemical reaction at constant temperature, and the throttling process as an adiabatic process are all relevant scenarios for these calculations. Understanding these enthalpy changes is crucial for various applications in thermodynamics.

PREREQUISITES
  • Understanding of thermodynamic principles, specifically enthalpy.
  • Familiarity with constant pressure and constant volume processes.
  • Knowledge of isothermal and adiabatic processes.
  • Basic concepts of heat transfer in chemical reactions.
NEXT STEPS
  • Study the calculation of enthalpy change for constant volume processes.
  • Research isothermal process implications on enthalpy and heat of reaction.
  • Examine the throttling process and its applications in thermodynamics.
  • Learn about the relationship between enthalpy and temperature changes in various processes.
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Students and professionals in thermodynamics, chemical engineers, and anyone involved in heat transfer and energy calculations in various processes.

olap001
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We know that the enthalpy change for a constant pressure process dh=cpdt.

Can we calculate the enthalpy change for a constant volume process, an isothermal process and an adiabatic process. If so how relevant are these calculations?

Ive been trying to work this out all week and I've never seen any examples asking for the enthalpy change for any other processes other than a constant pressure process

Your help will be greatly appreciated
 
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These are 3 valid (good) questions, and the calculations are (very) relevant:
1. a solid that is heated can be considered to be a constant volume process.
2. a chemical reaction proceeding "at constant T" gives the heat of reaction.
3. the throttling process is an adiabatic process with many applications.
 

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