For the aluminum block in Problem 57, it is likely that at least a little bit of the heat energy will go toward heating the horizontal surface on which the block slides. Will this effect make the final temperature of the block larger or smaller than found in Problem 57?

Data From Problem 57.

An aluminum block slides along a horizontal surface. The block has an initial speed of 10 m/s and an initial temperature of 10°C. The block eventually slides to rest due to friction. Assuming all the initial kinetic energy is converted to heat energy and all this energy stays in the block, what is the final temperature of the block?