The reaction between OH and C6H6 in He has been studied over the pressure range 250-500 Ton and the temperature range 345-385 K by means of the laser-photolysis/laser-induced-fluorescence technique. Analysis of the temporal profile of [OH] yielded the detailed rate coefficients and the equilibrium constant for the reaction OH+C6H6+M<->HOC6H6+M. The temperature dependence of the rate coefficients for the forward, the reverse, and the adduct-loss reactions have been determined to be k(f)=(2.0+/-0.1)X 10(-14) exp[(1420+/-250)/T] cm(3) molecule(-1) s(-1) k(r)=(3.0+/-0.2)X10(12) exp[-(8240+/-320)/T] s(-1), and k(a)=(1.7+/-0.3)x10(6) exp[-(3500+/-360)/T] s(-1) respectively. The temperature dependence of the equilibrium constant led to the enthalpy of reaction Delta H(365+/-20 K)=-(20.0+/-1.2) kcalmol(-1) and the entropy of reaction Delta S(365+/-20 K)=-(33.6+/-2.5) calK(-1)mol(-1), greater than previously reported values; after correction for temperature dependence, Delta H-0(298 K)=-(19.9+/-1.2) kcalmol(-1) and Delta S-0(298 K)=-(33.4+/-2.6) calK(-1) mol(-1).