This kind of reaction is endothermic . Almost all the chemical reactions that occur spontaneously in our everyday world are endothermic reactions. Examples include burning of gasoline, charcoal, and candle wax, and the discharge of batteries. Spontaneous endothermic chemical reactions are hard to find in our common experience. One endothermic process familiar to all of us is the melting of ice.
Ice absorbs heat as it melts.
It is a spontaneous endothermic process.