The gas law \(\left(\frac {PV}T\right) =\) constant is true for

Question

Question

Answer 1

CONCEPT:

Ideal gas law is obeyed by all hypothetical ideal gases but presents a good approximation of the behavior of many real gases as well.
It states that the product of pressure P and volume V of an ideal gas is proportional to its temperature T.

\(\Rightarrow PV \propto T\\ \Rightarrow \frac{PV}{T} = constant\)

EXPLANATION:

The law includes all the kinds of processes and changes the gas may undergo and is therefore valid for both isothermal and adiabatic changes. Therefore, option 3 is correct.

Additional Information

Isothermal process	Adiabatic process
For an isothermal process, the temperature of a gas is maintained constant by exchanging heat with the surrounding.	The temperature of the gas is a variable for an adiabatic process and no heat is exchanged with the surrounding.
\(\Delta T = 0\)	\(\Delta Q = 0\)