You lower the temperature of a sample of liquid carbon disulfide from 80.1 °C until its volume contracts by 0.543% of its initial value. What is the final temperature of the substance? The coefficient of volume expansion for carbon disulfide is 1.15 x 10-3 ('C)-'.

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**Problem Statement:**

You lower the temperature of a sample of liquid carbon disulfide from 80.1 °C until its volume contracts by 0.543% of its initial value. What is the final temperature of the substance? The coefficient of volume expansion for carbon disulfide is \( 1.15 \times 10^{-3} \, (\text{°C})^{-1} \).

**Solution:**

To solve for the final temperature, we can use the formula for volume expansion:

\[
\Delta V = V_i \times \beta \times \Delta T
\]

Where:
- \(\Delta V\) is the change in volume (given as a percentage of the initial volume, so \(\Delta V = -0.543\%\))
- \(V_i\) is the initial volume
- \(\beta\) is the coefficient of volume expansion (\(1.15 \times 10^{-3} \, (\text{°C})^{-1}\))
- \(\Delta T\) is the change in temperature

Rearranging the formula to solve for \(\Delta T\):

\[
\Delta T = \frac{\Delta V}{V_i \times \beta}
\]

Given that \(\Delta V / V_i = -0.00543\) (since it's a decrease),

\[
\Delta T = \frac{-0.00543}{1.15 \times 10^{-3}}
\]

Calculate \(\Delta T\) and then determine the final temperature by subtracting \(\Delta T\) from the initial temperature, 80.1 °C.

**Final Result:**

\[
\text{temperature:} \ \text{[Calculated Final Temperature]} \, °C
\]
Transcribed Image Text:**Problem Statement:** You lower the temperature of a sample of liquid carbon disulfide from 80.1 °C until its volume contracts by 0.543% of its initial value. What is the final temperature of the substance? The coefficient of volume expansion for carbon disulfide is \( 1.15 \times 10^{-3} \, (\text{°C})^{-1} \). **Solution:** To solve for the final temperature, we can use the formula for volume expansion: \[ \Delta V = V_i \times \beta \times \Delta T \] Where: - \(\Delta V\) is the change in volume (given as a percentage of the initial volume, so \(\Delta V = -0.543\%\)) - \(V_i\) is the initial volume - \(\beta\) is the coefficient of volume expansion (\(1.15 \times 10^{-3} \, (\text{°C})^{-1}\)) - \(\Delta T\) is the change in temperature Rearranging the formula to solve for \(\Delta T\): \[ \Delta T = \frac{\Delta V}{V_i \times \beta} \] Given that \(\Delta V / V_i = -0.00543\) (since it's a decrease), \[ \Delta T = \frac{-0.00543}{1.15 \times 10^{-3}} \] Calculate \(\Delta T\) and then determine the final temperature by subtracting \(\Delta T\) from the initial temperature, 80.1 °C. **Final Result:** \[ \text{temperature:} \ \text{[Calculated Final Temperature]} \, °C \]
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