What Type of Law Applies for Changes in Pressure, Volume, and Temperature?

[nafo man]

Homework Statement

what is the type of law that applies for this change?

Homework Equations

Isobaric,Isochoric ,Isothermal

The Attempt at a Solution

the parameters which stays constant during the change for isobaric is pressure and its a first law of thermodynamic.for isochoric is volume and again its a first law of thermodynamic,and for isothermal temperature remains constant and its a adiabatic law,but what expression during these changes stays constant?what would be different in term of parameter v expression .

 

[Simon Bridge]

what is the type of law that applies for this change?

For what change?

what expression during these changes stays constant?

For all of them? Total energy?

 

[nafo man]

type of law applies to :isobaric,isochoric,isothermal ?
what parameter stays constant during isobaric,isochoric,isothermal?
what Expressions stays constant during isobaric,isochoric,isothermal?

 

[Simon Bridge]

Not sure what "type of law" means here - I'm guessing it would be an answer like "Boyle's Law" etc.

Parameter of each - you have it right: to check, just google the terms.
"iso" is like "isolate"
thermal = temperature
baric = pressure
choric = volume (not obvious but there's only one left)

note: "adiabatic" is another process where the internal energy is unchanged

expressions to choose from would be those for:
total energy
internal energy
entropy
work
... that kind of thing

so for isothermal:
1. Boyle's Law
2. Constant temperature
3. PV=const, W=0 (const)

 

[paranormal]

The type of law that applies for these changes is the ideal gas law, which states that the pressure, volume, and temperature of a gas are related by the equation PV = nRT, where n is the number of moles of gas and R is the gas constant. In all three cases (isobaric, isochoric, and isothermal), one of these parameters remains constant while the others may change. For isobaric changes, the pressure remains constant while the volume and temperature may change. For isochoric changes, the volume remains constant while the pressure and temperature may change. And for isothermal changes, the temperature remains constant while the pressure and volume may change. In terms of the ideal gas law, this means that one of the variables (P, V, or T) remains constant while the others may vary. This is represented by the fact that one variable is not included in the equation (e.g. for isobaric changes, V is not included in the equation, indicating that it remains constant). Each type of change has its own unique effect on the expression for the ideal gas law, but the overall relationship between the variables remains the same.