Quantitative Reasoning

Analyzing Quantities in a Table

\begin{tabular}{|c|c|}
\hline
Pressure (torr) & Volume (mL) \\
\hline
750 & 30 \\
\hline
950 & 22 \\
\hline
1150 & 19 \\
\hline
1350 & 15 \\
\hline
1500 & 13 \\
\hline
1650 & 10 \\
\hline
\end{tabular}

Which statement accurately represents the relationship between pressure and volume?

A. As pressure increases, volume increases.
B. As pressure decreases, volume decreases.
C. As pressure increases, volume decreases.
D. As pressure increases, volume stays constant.



Answer :

To determine the relationship between pressure and volume based on the given data, follow these steps:

1. Review the Table:
[tex]\[ \begin{array}{|c|c|} \hline \text{Pressure (torr)} & \text{Volume (mL)} \\ \hline 750 & 30 \\ \hline 950 & 22 \\ \hline 1150 & 19 \\ \hline 1350 & 15 \\ \hline 1500 & 13 \\ \hline 1650 & 10 \\ \hline \end{array} \][/tex]

2. Identify Patterns in the Data:
- Observe how the pressure values change:
[tex]\[ 750, 950, 1150, 1350, 1500, 1650 \][/tex]
Clearly, the pressure is increasing.
- Observe how the volume values change:
[tex]\[ 30, 22, 19, 15, 13, 10 \][/tex]
Clearly, the volume is decreasing.

3. Evaluate Statements:
- As pressure increases, volume increases: This is not true because as pressure goes up, volume goes down.
- As pressure decreases, volume decreases: This statement is irrelevant because we are given data where the pressure increases, not decreases.
- As pressure increases, volume decreases: This statement is consistent with the observed pattern in the table.
- As pressure increases, volume stays constant: This is not true because volume changes as pressure changes.

4. Conclusion:
Given the increasing pressure values correspond to decreasing volume values, we can accurately state that:
[tex]\[ \textbf{As pressure increases, volume decreases.} \][/tex]

Therefore, the correct statement that accurately represents the relationship between pressure and volume is:
As pressure increases, volume decreases.