Some chemical reactions change temperature, change color, produce a gas, or make a solid from two liquids. Try this reaction and see what it does! Pour 1 tablespoon of hydrogen peroxide into a cup.

Zeng Wei of the Institute of Chemical Engineering ... the output energy density was 194 J/m 2 for 2 hours at a temperature gradient of 10 K, and the Carnot relative efficiency was as high as ...