Question

Choose the right answer from the following

The system _____ energy while going from solid to the liquid state.

• A. releases
• B. absorbs
• C. absorbs and releases
• D. transforms

Answer 1

The correct option is B

absorbs

Explanation for correct answer:-

Option (B) absorbs:

• Melting is the process where the solid changes its state to liquid.
• Meting point is that particular temperature at which the solid is being changed to liquid.
• During this process, the molecules present in the solid absorb the energy present in the surroundings.
• We all know that the molecules in the solid are closely packed to each and held together by strong intermolecular forces.
• Thus to overcome this force and get converted into the liquid, they absorb the energy that is present in the surroundings.
• This helps them to get converted into the liquid state.
• Hence it is the correct option.

Explanation for incorrect answer:-

Option (A) releases:

• Energy is absorbed when solid is converted to liquid.
• Energy is not being released as it would not help the system to change the state to liquid.
• Hence it is the incorrect option

Option (C) absorbs and releases:

• During this change in state from solid to liquid, the only absorbs energy.
• Release of energy does not occur.
• Hence it is the incorrect option.

Option (D) transforms:

• Transformation of energy does not happen here in this system.
• Only the energy is being absorbed by the system which helps it to change its state to liquid.
• Hence it is the incorrect option.

Therefore, the system option (B) absorbs energy while going from solid to the liquid state.