An average person's lungs contain about $5L$ of gas $\mathrm{.}1$ under normal conditions. If a diver makes a free dive $($no breathing apparatus$),$ the volume of the lungs is compressed when the pressure equalizes throughout the body. If compression occurs below $1L,$ irreversible lung damage will occur. Calculate the maximum safe depth for a free dive in seawater $($assume the density is the same as freshwater$)$

What is the density of propane gas $(C3H8)$ in $\mathrm{.}2$ kilograms per cubic meter at $200$kPa and $40C?$

What is the specific gravity of propane Calculate the number of cubic meters of hydrogen $3$ sulfide, measured at a temperature of $30C$ and a pressure of $15\mathrm{.}71cmHg($gauge pressure$),$ which may be produced from $10kg$ of iron sulfide $(FeS))=(87\mathrm{.}9$

A $0\mathrm{.}5m3$ rigid tank containing hydrogen at $20C\mathrm{.}4$ and $600$kPa is connected by a valve to another $0\mathrm{.}5m3$ rigid tank that holds hydrogen at $30C$ and $150$ kPa. Now the valve is opened and the system is allowed to reach thermal equilibrium with the surroundings, which are at $15C.$ Determine the final pressure in the tank

Methane is completely burned with $20\%$ excess air, $\mathrm{.}5$ with $30\%$ of the carbon going to $CO.$ What is the partial pressure of the $CO$ in the stack gas if the $?$barometer reads $740mmHg$ How many kilograms of $CO2$ can be put into a $25L\mathrm{.}6$ cylinder at room temperature $(25C)$ and $200$kPa absolute pressure? $Pc=7385$kPaTc$=304\mathrm{.}2K$

Select the correct answer$($s$)$ in the following $.7$ statements: $$ a$.$ In a container of $1\mathrm{.}00L$ of toluene, the vapor pressure of the toluene is $103mmHg.$ The same vapor pressure will be observed in a container of $(1)2\mathrm{.}00L$ of toluene at the same temperature; $(2)1\mathrm{.}00L$ of toluene at one$-$half the absolute temperature; $(3)1\mathrm{.}00L$ of alcohol at the same temperature; $(4)2\mathrm{.}00L$ of alcohol at the same temperature. $b.$ The temperature at which a compound melts is the same temperature at which it $(1)$ sublimes; $(2)$ freezes; $(3)$ condenses; $(4)$ evaporates. $c.$ At what pressure would a liquid boil first? $(1)1$atm; $(2)2$atm; $(3)200mmHg$; $(4)101\mathrm{.}3$kPa.