Isochoric
| Formula / Notation | q_v = ΔU |
|---|---|
| Also Known As | Constant volume process, isochoric process, bomb calorimetry process |
What is Isochoric?
Isochoric refers to a process or transformation that occurs at constant volume. No work of expansion or compression is done in an isochoric process (w = 0, since ΔV = 0). At constant volume, all heat exchanged equals the change in internal energy (q_v = ΔU). Bomb calorimeters operate isochorically and measure ΔU directly, which is then converted to ΔH.
Formula & Notation
Other Names / Synonyms: Constant volume process, isochoric process, bomb calorimetry process
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Isochoric refers to a process or transformation that occurs at constant volume. No work of expansion or compression is done in an isochoric process (w = 0, since ΔV = 0). At constant volume, all heat exchanged equals the change in internal energy (q_v = ΔU). Bomb calorimeters operate isochorically and measure ΔU directly, which is then converted to ΔH.
Bomb calorimetry (measuring heat of combustion at constant volume). Thermodynamic calculations. Understanding internal energy vs. enthalpy. Closed rigid vessel reactions. Detonation and explosion thermodynamics. High-pressure chemical processes.
Bomb calorimeter safety: high pressures involved. Samples tested may be explosive or flammable. Sealed vessels must be properly rated for maximum pressure. Regular inspection required.
The formula or notation for Isochoric is: q_v = ΔU