Yes, entropy is a function of temperature for ideal gases.
The change of entropy of a substance is given by the relationship ΔS = ∫ dQre/T
And dQ = dU + P dV
For an ideal gas both U and V are a function of de T.
=> dS = [dU]/T + P[dV]/T,
dU = Cv dT
PdV = nRT/V
=> dS = Cv [dT] / T + nR[dV] / V
There you can see that the change of entropy, dS, is a function of T.
