Originally Posted by
marikas 3. The entropy change, ΔS, associated with the isothermal (i.e.
constant temperature) change in volume of n moles of an ideal
gas from volume V1 to volume V2 is given by the equation
ΔS = nR ln(V2/V1)
where R is the gas constant.
& If an expansion occurs (V2 > V1) use Equation 1 to deduce
whether there will there be an increase or decrease in the
entropy of the gas.