To find the water vapor pressure of water at 29 degrees Celsius, you can use the Antoine equation. The Antoine equation relates the vapor pressure of a substance to its temperature.
The equation for water is: log10(p) = A - (B / (T + C))
Where p is the vapor pressure in mmHg, T is the temperature in degrees Celsius, and A, B, and C are constants specific to water.
For water, the values of A, B, and C are as follows:
A = 8.07131
B = 1730.63
C = 233.426
Now, substituting the given temperature of 29 degrees Celsius into the equation:
log10(p) = 8.07131 - (1730.63 / (29 + 233.426))
Simplifying the equation gives:
log10(p) = 7.958
Next, we need to solve for p. By converting the equation to exponential form, we get:
p = 10^(7.958)
Calculating this value gives us:
p โ 779 mmHg
Therefore, the water vapor pressure at 29 degrees Celsius is approximately 779 mmHg.