Question

A nondegenerate ideal gas of diatomic molecules with a kilomolar mass of 2 kg/kmol and a characteristic rotational temperature of 86 K is adsorbed on the walls of a container, where the binding energy is 0.02 eV. The adsorbed molecules move freely on the walls, and their rotation is confined to the plane of the walls. Calculate the surface density of adsorbed molecules at 12 K if the gas pressure is 103 Pa! What result would you get at 68 K and the same pressure?

98

likes
488 views

Answer to a math question A nondegenerate ideal gas of diatomic molecules with a kilomolar mass of 2 kg/kmol and a characteristic rotational temperature of 86 K is adsorbed on the walls of a container, where the binding energy is 0.02 eV. The adsorbed molecules move freely on the walls, and their rotation is confined to the plane of the walls. Calculate the surface density of adsorbed molecules at 12 K if the gas pressure is 103 Pa! What result would you get at 68 K and the same pressure?

Expert avatar
Madelyn
4.7
86 Answers
To calculate the surface density of adsorbed molecules, we can use the Langmuir adsorption isotherm equation: Γ = (P * A) / (k * T) where: Γ is the surface density of adsorbed molecules in mol/m², P is the gas pressure in Pa, A is the binding energy per molecule in J, k is the Boltzmann constant (1.38 x 10^-23 J/K), T is the temperature in Kelvin. First, let's convert the binding energy from eV to J: 1 eV = 1.602 x 10^-19 J So, the binding energy is 0.02 eV * 1.602 x 10^-19 J/eV = 3.204 x 10^-21 J. Now, let's calculate the surface density at 12 K: Γ₁ = (103 Pa * 3.204 x 10^-21 J) / (1.38 x 10^-23 J/K * 12 K) Γ₁ ≈ 1.87 x 10^5 mol/m² Next, let's calculate the surface density at 68 K: Γ₂ = (103 Pa * 3.204 x 10^-21 J) / (1.38 x 10^-23 J/K * 68 K) Γ₂ ≈ 5.26 x 10^4 mol/m² Therefore, at 12 K and a gas pressure of 103 Pa, the surface density of adsorbed molecules is approximately 1.87 x 10^5 mol/m², while at 68 K and the same pressure, the surface density is approximately 5.26 x 10^4 mol/m².

Frequently asked questions (FAQs)
Math question: What is the absolute extrema of the function f(x) = 3x^2 - 4x + 2 on the interval [1, 5]?
+
What is the sum of 156 and 87?
+
Math Question: If log base 2 of x equals 3, what is the value of x?
+
New questions in Mathematics
a runner wants to build endurance by running 9 mph for 20 min. How far will the runner travel in that time period?
5 . {2/5 + [ (8/-9) - (1/-7) + (-2/5) ] ÷ (2/-5)} . 8/15
11(4x-9)= -319
Solve: −3(−2x+23)+12=6(−4x+9)+9.
Kayla has $8,836.00 in her savings account. The bank gives Kayla 5%of the amount of money in account as a customer bonus. What amount of money does the bank give Kayla? Justify your answer on a 6th grade level.
How many kilometers does a person travel in 45 minutes if they move at a rate of 8.3 m/s?
132133333-33
Find the measures of the sides of ∆KPL and classify each triangle by its sides k (-2,-6), p (-4,0), l (3,-1)
Moaz wanted to test whether the level of headache pain (on a scale of 1 – 10) changes after taking Advil. He collected data from 9 participants and calculated the difference in headache pain before and after taking Advil (summarized in the table below). Determine W observed for this test. Difference Scores -2 -4 0 +1 +3 -2 0 -3 -5 Also, What is the degrees of freedom for this test?
Divide 22 by 5 solve it by array and an area model
Estimate the fifth term if the first term is 8 and the common ratio is -1/2
How many different ways can a psychology student select 5 subjects from a pool of 20 subjects and assign each one to a different experiment?
We have spent 1/4 of the inheritance on taxes and 3/5 of the rest on buying a house. If the inheritance was a total of €150,000 How much money do we have left?
3. A rock is dropped from a height of 16 ft. It is determined that its height (in feet) above ground t seconds later (for 0≤t≤3) is given by s(t)=-2t2 + 16. Find the average velocity of the rock over [0.2,0.21] time interval.
With the aim of identifying the presence of the feline leukemia virus (FeLV), blood samples were collected from cats sent to a private veterinary clinic in the city of Belo Horizonte. Among the animals treated, it was possible to observe that age followed a Normal distribution with a mean of 4.44 years and a standard deviation of 1.09 years. Considering this information, determine the value of the third quartile of the ages of the animals treated at this veterinary clinic. ATTENTION: Provide the answer to exactly FOUR decimal places
User One of the applications of the derivative of a function is its use in Physics, where a function that at every instant t associates the number s(t), this function s is called the clockwise function of the movement. By deriving the time function we obtain the velocity function at time t, denoted by v(t). A body has a time function that determines its position in meters at time t as S(t)=t.³√t+2.t . Present the speed of this body at time t = 8 s.
Let v be the set of all ordered pairs of real numbers and consider the scalar addition and multiplication operations defined by: u+v=(x,y)+(s,t)=(x+s+1,y+t -two) au=a.(x,y)=(ax+a-1,ay-2a+2) It is known that this set with the operations defined above is a vector space. A) calculate u+v is au for u=(-2,3),v=(1,-2) and a=2 B) show that (0,0) #0 Suggestion find a vector W such that u+w=u C) who is the vector -u D) show that axiom A4 holds:-u+u=0
How to factorise 5y^2 -7y -52
nI Exercises 65-68, the latitudes of a pair of cities are given. Assume that one city si directly south of the other and that the earth is a perfect sphere of radius 4000 miles. Use the arc length formula in terms of degrees to find the distance between the two cities. 65. The North Pole: latitude 90° north Springfield, Illinois: latitude 40° north
if y=1/w^2 yw=2-x; find dy/dx