I have looked many databooks for some alkanes standard entropy of ideal gas at 298.15K, but the standard entropy values of the following components was difficult to find. I'd be very grateful if anyone can scan their databook pages for me. thanks ahead.
3methylhexane, 2,2dimethylpentane, 2,4dimethylpentane, 3,3dimethylpentane, 2,2,3-trimethylbutane