Question $4$

Two liters of a liquid chemical is spilled on the laboratory floor. Assume $1$ atm of pressure and

a temperature of $25C.$

Chemical Data: Molecular weight: $100,$ saturation vapor pressure of chemical at $25C$:$100$

$mmHg.$

a$)$ If the liquid pool is $2mm$ deep, calculate the area of the pool.

b$)$ What ventilation rate range, in $m\frac{3}{s},$ is required to prevent the air concentration from

exceeding the TLV for the chemical of $100$ ppm$?$ Assume $k$ varies from $0\mathrm{.}1$ to $0\mathrm{.}5.$

c$)$ Ventilation air is provided for the lab via a $0\mathrm{.}5m2$ duct. The air velocity exiting the duct is

measured with a velometer at $30\frac{m}{s}.$ Calculate the volumetric flow of air from this duct in

$m\frac{3}{s}.$ Is this adequate ventilation for this spill?

a$)1m2,$ b$)3700$ to $740m\frac{3}{m}in,$ c$)740m\frac{3}{m}in$

a$)1m2,$ b$)3700$ to $740m\frac{3}{m}in,$ c$)900m\frac{3}{m}in$

a$)1m2,$ b$)300$ to $70m\frac{3}{m}in,$ c$)900m\frac{3}{m}in$

a$)1m2,$ b$)3700$ to $740m\frac{3}{m}in,$ c$)3700m\frac{3}{m}in$