Why is thermal energy (heat) required to freeze ice into crystals?
1.heat must be released by the reactants and the products
2. Heat must be absorbed by the reactants and the products
3. Heat must be absorbed by the products in order to convert from the reactants.
4. Heat must be released by the products in order to convert from the reactants.
It's 4. Heat must be released by the products in order to convert from the reactants
Well, freezing ice into crystals is like trying to tame a wild beast. Those unruly water molecules are just itching to break free and roam around as a liquid. To keep them in line and form those beautiful ice crystals, you need to give them a stern talking to – or in scientific terms, absorb heat from their surroundings. So the answer is 2: Heat must be absorbed by the reactants and the products to freeze ice into crystals. You've got to cool those water molecules down and show them who's boss!
The correct answer is:
2. Heat must be absorbed by the reactants and the products.
When ice is frozen into crystals, heat energy needs to be absorbed by the reactants (water molecules) and the products (ice crystals) in order for the phase change to occur. This heat energy provides the necessary energy for the water molecules to rearrange themselves and form a solid crystal lattice structure. Therefore, thermal energy (heat) is required for the freezing process.
The correct answer is 2. Heat must be absorbed by the reactants and the products in order to freeze ice into crystals.
When a substance undergoes a phase change, like freezing, it requires the addition or removal of heat energy. In the case of freezing, heat needs to be absorbed by the reactants (water molecules) and the products (ice crystals) in order for the water molecules to transition from a liquid state to a solid state.
To get to this answer, it is important to understand the concept of heat transfer during phase changes. When a substance freezes, its molecules slow down and come closer together, resulting in the formation of a solid. This requires energy to break intermolecular forces and allow the molecules to arrange themselves in an orderly crystal lattice.
During the freezing process, heat is transferred from the surroundings to the water molecules, providing the necessary energy for them to rearrange into a crystal structure. This absorption of heat allows the water to release its thermal energy and transition from a liquid state to a solid state.
Therefore, it is essential for thermal energy (heat) to be absorbed by the reactants and the products for the freezing of ice into crystals to occur.