A mixture of neon and helium
gases, in a 8.59 L flask at 56
°C, contains 3.13 grams of neon
and 0.729 grams of helium. The
partial pressure of helium in the flask is ___ atm
and the total pressure in the flask is ____ atm.
A helium neon laser emits red light of wavelength 632.8 nm,
which is obtained when neon atoms move from level 5s to level 3p.
Given is a tube that contains 0.25 moles of a helium-neon mix, of
which 15% are neon atoms. Also given is that while the laser is
active, around 2% of the neon atoms are located at one of the two
given energy levels at any time.
a) what is the difference in energy between levels 5s...
5. Compare samples of bromine gas and sulfur dioxide gas at
50.00 °C and 0.9000 atm pressure.
Identify which of these gasses has the larger value for each of
the following properties. ["neither" means that they both have the
same value for that property.]
Select the one answer that is correct in both columns.
higher density -------- higher average molecular velocity:
A. bromine; sulfur dioxide
B. sulfur dioxide; sulfur dioxide
C. bromine; bromine
D. sulfur dioxide; bromine
E. bromine; neither
A container is filled with 8.20 g helium, 6.50 g nitrogen gas
and 4.40 g neon gas. The total pressure of the container is 1240
mmHg. What is the partial pressures of each gas.
1. A mixture of neon and
nitrogen gases, in a 8.00 L flask
at 42 °C, contains 3.03 grams of
neon and 6.80 grams of
nitrogen. The partial pressure of
nitrogen in the flask is atm and the total
pressure in the flask is atm.( 2answers)
2. A mixture of krypton and
argon gases is maintained in a
8.85 L flask at a pressure of
3.89 atm and a temperature of 24
°C. If the gas mixture contains 71.5 grams...
A cylinder of volume 0.240 m3 contains 10.1 mol of
neon gas at 21.6°C. Assume neon behaves as an ideal gas
(g) Compute ΔU − W.
(i) Compute Q, the thermal energy transfer.