The approximate vapor pressure of CS2 at 30 degrees Celsius?

To determine the approximate vapor pressure of CS2 at 30 degrees Celsius, you can use the Antoine equation, which is a widely used empirical equation that relates the vapor pressure of a substance to its temperature.

The Antoine equation is given by:
log10(P) = A - B/(T+C)

In this equation, P represents the vapor pressure in mmHg, T represents the temperature in degrees Celsius, and A, B, and C are substance-specific constants.

For CS2, the values of A, B, and C are:
A = 8.00308
B = 1834.543
C = 235.170

Now, let's substitute the values into the equation:
log10(P) = 8.00308 - 1834.543/(30 + 235.170)

Simplifying the equation gives us:
log10(P) = 8.00308 - 1834.543/265.170

Next, we can isolate P by taking the antilog (inverse logarithm) of both sides of the equation:
P = 10^(8.00308 - 1834.543/265.170)

Calculating this will give you the approximate vapor pressure of CS2 at 30 degrees Celsius.