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A pressure of 10 mm ahh is measured at the triple point of water using a constant volume gas thermometer.what will the pressure be in mm hg at 50 degrees celsius

Respuesta :

Answer: To solve this problem, we can use the ideal gas law equation:

\[ P_1/T_1 = P_2/T_2 \]

where:

- \( P_1 \) and \( T_1 \) are the initial pressure and temperature, respectively.

- \( P_2 \) and \( T_2 \) are the final pressure and temperature, respectively.

Given:

- \( P_1 = 10 \) mm Hg (at the triple point of water).

- \( T_1 = 0 \) degrees Celsius (at the triple point of water).

- \( T_2 = 50 \) degrees Celsius.

First, we need to convert the temperatures to Kelvin since the ideal gas law requires temperatures in Kelvin.

\[ T_1 = 0 + 273.15 = 273.15 \text{ K} \]

\[ T_2 = 50 + 273.15 = 323.15 \text{ K} \]

Now, let's solve for \( P_2 \):

\[ P_2 = P_1 \times \frac{T_2}{T_1} \]

\[ P_2 = 10 \times \frac{323.15}{273.15} \]

\[ P_2 = 10 \times 1.1837 \]

\[ P_2 \approx 11.837 \text{ mm Hg} \]

Therefore, the pressure at 50 degrees Celsius will be approximately 11.837 mm Hg.

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