Dry ice is solid carbon dioxide. Instead of melting, solid
carbon dioxide sublimes according to the following equation:
CO2(s)→CO2(g). When dry ice is added to warm water, heat from the
water causes the dry ice to sublime more quickly. The evaporating
carbon dioxide produces a dense fog often used to create special
effects. In a simple dry ice fog machine, dry ice is added to warm
water in a Styrofoam cooler. The dry ice produces fog until it
evaporates away,...