Question

Calculate the number of collisions per second of one hydrogen molecule at 25 °C and 6.00...

Calculate the number of collisions per second of one hydrogen molecule at 25 °C and 6.00 bar. The diameter of a hydrogen molecule is 270 pm.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The no. of collisions suffered by a single gaseous molecule is give by the following equation

Z = 1.414 X π X d2 X <c> X P/kT

<c> = average velocity = (8RT/πM)1/2 = [8 X (8.314J/Kmol) X (298K) / 3.1416 X 2 X 10-3Kg/mol) = 1776.3ms-1

d = diamter = 270 X 10-12m

k = Boltzmans constant = 1.38 X 10-23 J/K

Other terms have usual meaning like pressure , temperature

Z = 1.414 X 3.14 X (270 X 10-12) 1/2 X 1776.3X 6 X 101325 / 1.38 X 10-23 X 298 = 8.5 X 1010 s-1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Calculate the number of collisions per second of one hydrogen molecule at 26 °C and 7.00...
Calculate the number of collisions per second of one hydrogen molecule at 26 °C and 7.00 bar. The diameter of a hydrogen molecule is 270 pm.
Calculate the pressures, P, in atmospheres at which the mean free path, l, of a hydrogen...
Calculate the pressures, P, in atmospheres at which the mean free path, l, of a hydrogen molecule will be 3.50 μm, 3.50 mm, and 3.50 m at 20.0 °C. The diameter of a H2 molecule is 270 pm.
(a) The density of the interstellar gas, mainly hydrogen (2 g/mol), is approximately one molecule (2...
(a) The density of the interstellar gas, mainly hydrogen (2 g/mol), is approximately one molecule (2 g/mol). per cubic centimeter. If the molar diameter is 10-10 m, what is the average free path? What is the the collision frequency for a hydrogen molecule if the temperature is 3 K? (b) It has been seen that for diffusion, the distance travelled by a molecule is proportional to the root of the molecule. square of the number n of collisions, i.e. the...
A hydrogen molecule (diameter 1.50 × 10-8 cm), traveling at the rms speed, escapes from a...
A hydrogen molecule (diameter 1.50 × 10-8 cm), traveling at the rms speed, escapes from a 4150 K furnace into a chamber containing cold argon atoms (diameter 2.96 × 10-8 cm) at a density of 3.85 × 1019 atoms/cm3(a) What is the speed of the hydrogen molecule? (b) If it collides with an argon atom, what is the closest their centers can be, considering each as spherical? (c) What is the initial number of collisions per second experienced by the...
The diameter of a H2 molecule is about 2.5 Å. For H2 gas at 0o C...
The diameter of a H2 molecule is about 2.5 Å. For H2 gas at 0o C and 1 atm, calculate the following. Assume ideal gas. (Note: For the equations that I gave you in class, σ is the diameter. For the equations in the text, the symbol σ is used for the collision cross-section, equal to 4πr 2 , where r is the radius of the molecule. If you decide to use the equations in textbook rather than the ones...
The collision diameter, d, of an H2 molecule is about 0.25 nm = 2.5 * 10^-10...
The collision diameter, d, of an H2 molecule is about 0.25 nm = 2.5 * 10^-10 m. For H2 gas at 0 degrees celsius and 1 bar, calculate the following: a. Root-mean-square velocity b. The translational kinetic energy of 1 mol of H2 molecules c. The number of H2 molecules in 1 mL of the gas d. The mean free path e. The number of collisions each H2 molecule undergoes in 1 s f. The total number of intermolecular collisions...
Hydrogen has a Henry’s law constant of at 25 °C when dissolving in water. If the...
Hydrogen has a Henry’s law constant of at 25 °C when dissolving in water. If the total pressure of gas ( gas plus water vapor) over water is 1.00 bar, what is the concentration of in the water in grams per milliliter? (The vapor pressure of water at 25 °C is 23.8 torr.)
A student prepares a sample of hydrogen gas by electrolyzing water at 25°C. She collects 112...
A student prepares a sample of hydrogen gas by electrolyzing water at 25°C. She collects 112 mL of H2 at a total pressure of 758 mm Hg. Vapor pressure of water at 25°C = 23.76 mm Hg, calculate: the partial pressure of hydrogen, (b) the number of moles of hydrogen collected
Calculate the maximum efficiency of an ethanol fuel cell at 25°C and 1 bar. Compare your...
Calculate the maximum efficiency of an ethanol fuel cell at 25°C and 1 bar. Compare your efficiency to that of a hydrogen fuel cell operating at the same temperature and pressure. Approximate answer for ethanol: 100% efficiency.
Critical constants of a methane are given by Pc = 46.2bar and Vm,c =0.09871/mol.  The CH4 molecule...
Critical constants of a methane are given by Pc = 46.2bar and Vm,c =0.09871/mol.  The CH4 molecule is a perfect tetrahedron with a carbon atom at its centre and one hydrogen atom in each corner. The Van-de-Waals parameters, a=2.81 mL2 mol -1 and b=0.3290mol-1. And the volume of the molecule is 5.46x10-23 cm3/molecule. How do you calculate the length of the C-H bond in Angstrom(1A=10-10m) And why would this value be different between the value calculated and the literature value of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT