Chemistry - Thermodynamics - I Question with Solution | TestHub
Match the column
Column I | Column II |
|---|---|
P) Isochoric | i) Rigid |
Q) Isothermal | ii) Non-rigid |
R) Isobaric | iii) Impermeable |
S) Adiabatic | iv) Diathermal |
| v) Insulated |
| vi) Thermostatic |
(Column I = Process; Column II = Type of boundary possible)
Options:
Answer:
Solution:
An isochoric process needs a constant-volume vessel, so the boundary must be rigid; it may in addition be impermeable, diathermal, insulated or kept in a thermostat (P – i,iii,iv,v,vi; not non-rigid). An isothermal process must exchange heat with a thermostat, so the wall must be diathermal/thermostatic; it may be rigid, non-rigid or impermeable, but not insulated (Q – i,ii,iii,iv,vi). An isobaric process requires the volume to change against the constant pressure, so the wall must be non-rigid; it may be impermeable, diathermal, thermostatic, or insulated (irreversible adiabatic expansion against a constant external pressure) (R – ii,iii,iv,v,vi). An adiabatic process requires an insulated boundary, which may be rigid or non-rigid (S – i,ii,v).
