Why is thermal energy (heat) required to freeze ice into crystals?
Responses-
a- Heat must be absorbed by the reactants and the products.
b- Heat must be released by the products in order to convert from the reactants.
c- Heat must be absorbed by the products in order to convert from the reactants.
d- Heat must be released by the reactants and the products.
c- Heat must be absorbed by the products in order to convert from the reactants.
c- Heat must be absorbed by the products in order to convert from the reactants.
The correct option is c- Heat must be absorbed by the products in order to convert from the reactants.
When water freezes into ice, it undergoes a phase transition from a liquid state to a solid state. This phase transition requires a change in the arrangement of water molecules, allowing them to form a crystalline structure.
In order for this transformation to occur, energy needs to be absorbed by the water molecules. This is because the structure of the ice is more ordered and has a lower energy state compared to the liquid water. The additional energy, in the form of thermal energy or heat, provides the necessary input for the molecules to rearrange themselves and form the solid ice crystals.
Therefore, the heat must be absorbed by the water molecules during the freezing process in order to convert from a liquid state to a solid state.