States of Matter: Gases and Liquids

Which of the following values is equal to $760\ torr$?

According to Boyle’s law, for a fixed mass of gas at constant temperature, the product of pressure and volume ($PV$) is:

The property of gases that allows them to spread out and occupy the entire available volume is called:

The root mean square speed of gas molecules is proportional to the square root of:

Which of the following represents the correct order of the three types of molecular speeds?

Liquid drops are spherical in shape because of:

What is the total pressure of a mixture of $2 \text{ g}$ of $H_2$ and $8 \text{ g}$ of $He$ in a $10 \text{ L}$ flask at $273 \text{ K}$?

Which of the following represents the correct order of the Boyle temperature ($T_b$), Critical temperature ($T_c$), and Inversion temperature ($T_i$) for a van der Waals gas?

At low pressures, the van der Waals equation for 1 mole of gas can be approximated as $PV = RT - a/V$. In this region, what is the value of the compressibility factor $Z$?

What is the ratio of the collision frequency $Z_{11}$ for a gas at $2 atm$ and $300 K$ to that at $1 atm$ and $300 K$?

The value of the gas constant $R$ in $erg \cdot K^{-1} \cdot mol^{-1}$ is:

In Charles's Law, which parameter must be kept constant besides the number of moles?

According to the rearranged gas equation $d = PM/RT$, gas density is directly proportional to:

At absolute zero temperature, the theoretical volume of an ideal gas becomes:

The total pressure of a mixture of $1\ mole$ of $He$ and $1\ mole$ of $CH_{4}$ in a $22.4\ L$ vessel at $273\ K$ is:

A rigid tank contains a gas at $5\ atm$ and $20^{\circ}C$. If the tank can withstand a maximum pressure of $10\ atm$, at what temperature will the tank burst?

If $PV = nRT$, then the ratio $P/T$ is proportional to:

The molecular weight of a gas is $44$. Its density at $S.T.P.$ is:

An ideal gas is compressed to half its initial volume while its temperature is doubled. The final pressure will be:

The value of the universal gas constant $R$ is $0.083\ L\ bar\ K^{-1}\ mol^{-1}$. What is its value in $cm^3\ MPa\ K^{-1}\ mol^{-1}$?

In the expression $KE = \frac{3}{2} kT$, the 'k' stands for:

The Kinetic Molecular Theory can be used to derive which of the following laws?

Which of the following correctly defines the Average Speed ($u_{av}$)?

If the mass of each molecule in a gas is doubled and their speed is halved, the pressure (assuming $V$ and $N$ are constant) will:

What is the average kinetic energy of $0.5$ moles of $CO_{2}$ at $273 K$?

Which of the following has the same value for all ideal gases at a given temperature?

If the temperature of an ideal gas in a rigid container is tripled, what happens to the pressure?

The fraction of molecules having speeds between $u$ and $u+du$ in the Maxwell distribution:

A balloon is filled with $N_2$. If a small hole is made, the gas escapes. If the balloon were filled with $He$ instead at the same pressure, how much faster would the balloon deflate?

Which of the following properties of an ideal gas does NOT depend on the chemical nature of the gas?

Liquid oxygen is usually stored in:

According to Van der Waals, the excluded volume '$b$' is how many times the actual volume of the molecules?

Which of the following is NOT a method used to liquefy gases?

The pressure-volume isotherms of $CO_{2}$ were studied by:

According to the principle of corresponding states, two different gases behave similarly if they have the same:

In the context of the Joule-Thomson effect, the 'inversion temperature' is the temperature at which:

Which of the following is true for a gas at its critical temperature ($T_c$)?

For a real gas, the compressibility factor $Z$ at the Boyle temperature $T_B$ as $P \to 0$ is:

If the temperature of a gas is decreased while keeping the pressure constant at $P < P_c$, at what point does the gas start to liquefy?

Which gas deviates most from ideal behavior at $273 \text{ K}$?