The heat capacity of Cr,As was measured from 5 to 1000 K by adiabatic shield calorimetry. At a temperature of 298.15 K, C-p,C-m is found to be 79.56 J K-1 mol(-1), [S-m(T) - S-m(0)] is 91.42 J K-1 mol(-1) and [(H-m(T) - H-m(0)] is 14510 J K-1 mol(-1), where as at 1000 K, C-p,C-m is 103.1 J K-1 mol(-1), [S-m(T) - S-m(0)] is 201.8 J K-1 mol(-1) and [(H-m(T) - H-m(0)] is 79750 J K-1 mol(-1). A lambda-type contribution to the heat capacity with maximum at similar to 394 K is due to magnetic disordering of the antiferromagnetic compound, The clearly cooperative part of the transitional entropy is only 1.3 J K-1 mol(-1) over the region 300 to 450 K. The excess heat capacity above that of the lattice plus dilation and conduction electron contributions at temperatures above 150 K indicates that the magnetic excitations persist over a much wider temperature range.