Brian made this table to organize his notes on changes of state.

\begin{tabular}{|l|l|}
\hline \multicolumn{1}{|c|}{ Change of State } & \multicolumn{1}{c|}{ Energy Change } \\
\hline melting & gain \\
\hline freezing & lose \\
\hline deposition & gain \\
\hline condensation & lose \\
\hline
\end{tabular}

Which change of state has the wrong energy change listed?

A. Condensation
B. Deposition
C. Melting
D. Freezing



Answer :

Let's carefully examine the changes of state listed in Brian's table along with the corresponding energy changes. Here's what we know about energy changes associated with each state transition:

1. Melting: When a substance changes from a solid to a liquid, it gains energy. The particles need energy to break free from their fixed positions in a solid to move more freely as a liquid. Thus, the energy change should be a gain of energy.

2. Freezing: When a substance changes from a liquid to a solid, it loses energy. The particles release energy as they come together to form a more ordered structure. Thus, the energy change should be a loss of energy.

3. Deposition: This is the process where a gas changes directly into a solid. During deposition, the substance loses energy as it moves into a more ordered, lower-energy state. Thus, the energy change should be a loss of energy.

4. Condensation: This is the process where a gas changes into a liquid. In this process, the substance loses energy as the particles come closer together and move into a more ordered state. Thus, the energy change should be a loss of energy.

Now, let's compare this understanding with the table Brian made:

[tex]\[ \begin{array}{|l|l|} \hline \text{Change of State} & \text{Energy Change} \\ \hline \text{melting} & \text{gain} \\ \hline \text{freezing} & \text{lose} \\ \hline \text{deposition} & \text{gain} \\ \hline \text{condensation} & \text{lose} \\ \hline \end{array} \][/tex]

Comparing each entry:

- Melting: gain (correctly listed)
- Freezing: lose (correctly listed)
- Deposition: gain (incorrectly listed — should be lose)
- Condensation: lose (correctly listed)

The change of state that has the wrong energy change listed is deposition. Therefore, the change of state with the incorrect energy change is:

deposition