We report experimental results on the melting behavior of a dipolar substance, bromobenzene, adsorbed in multiwalled carbon nanotubes (MWNTs) of (2.4, 4.0, and 10) nm inner diameter. Dielectric relaxation spectroscopy (DRS) and differential scanning calorimetry (DSC) methods have been used to show a solid liquid transition of confined C(6)H(5)Br. The C(6)H(5)Br melting point in pores has been found to increase with decreasing pore diameter. This result is in qualitative agreement with that obtained in molecular simulation for CCl(4) in similar MWNTs, where the adsorbate wall interactions are strong compared to the adsorbate adsorbate interactions (see Jazdzewska et al., Phys. Chem. Chem. Phys. 2005, 7, 3884-3857).