Which of the following gases will have the highest density at 25.0 degrees C?
a) Ar
B) H2
c) HF
d) Xe
Higher the mass, higher is the density. Hence, xenon will have the highest density.
Which of the following gases will have the highest density at 25.0 degrees C? a) Ar...
Which one of the following gases would be expected to have the highest speed if all the gases were at the same temperature? A) O2 B) N2 C) F2 D) H2 Which of the following would behave the most like an ideal gas when confined to a 5.0 L container? A) 1 mol of Ne at 800 K B) 5 mol of Ne at 300 K C) 1 mol of CO2 at 800 K D) 5 mol of CO2 at...
.The density of a gas at 1.00 atm and 25.0°C is 1.798 g/L, which of the following is most likely the gas? a) CO2 b) NO c) SO2 e) Ar d) O2
A) Which box has the highest partial pressure of Ne, PNe ? B) Which box has the lowest mole fraction of Ar, xAr ? C) Which box has the highest total pressure, Ptotal? D) Which box has equal values of PNe and PAr ? Consider the mixtures of two ideal gases, Ne (red atoms) and Ar (blue atoms), shown here. All of the mixtures are at the same temperature. (c) (d)
According to kinetic-molecular theory, in which of the following gases will the average speed of the molecules be the highest at 400°C? (Please explain, thank you!) a) H2O b) Cl2 c) SO2 d) HF
A sample of gas contains four gases (He, Ne, Ar, and Xe) with the following partial pressures: He (43 mm Hg), Ar (835 mm Hg), and Xe (111mm Hg)and a total pressure in the container of 1355 MM Hg. What is the number of moles of Ne in the container if the volume is 1.00 L and temperature is 25°C? O 14.96 moles 0 4458 moles 01.00 moles 0.0197 moles 6.46 X 10-5 moles
17) Which of the following gases has the highest average speed at 400K? A) SF6 B) OF 2 C) NO2 D) SO2
If the gas has a molar mass of 86 g/mol, what is the density of a gas (in g/L) at 25.0°C and 124.1 kPa? Consider four identical 1.0-L flasks containing the following gases each at 25°C and 1 atm pressure. For which gas do the molecules have the greatest average kinetic energy? A. Ne B. Ar C. He D. Kr E. same for all the gases
Consider the boiling points of the noble gases 5. Ne Ar Kr Xe T C) -245.9 -185.7-152.3 -107.1 Rak the gases n ors f tntemoleclars b. Rank the gases in order of increasing atomic radius As the valence charge cloud gets larger, would it be easier or harder for an extra electron to move to one side of the atom, thus giving the particle a temporary dipole moment? (Circle your choice.) c. Consider the boiling points of the noble gases...
According to the kinetic molecular theory of gases, which of the following gases will have the lowest average molecular speed at the same temperature? Assume ideal behavior. O CO O All gases have the same average speed at the same temperature. OHF O Ar
#1) Which of the following gas samples contains the greatest mass of gas molecules? a. 1 L of He at STP b. 1 L of Xe at STP c. 1 L of H2 at STP d. All are the same #2) Which physical property/state is incorrectly matched? a. liquids - rigid shape b. gases - easily compressed c. gases and liquids - flow d. solids - higher density than gases e. liquids - incompressible