For the following wavelength determine if the atmospheric emissivity(thus absorptivity) is closer to 0 or closer...
For the following wavelength determine if the atmospheric emissivity(thus absorptivity) is closer to 0 or closer to 1
Wavelength= 3 micrometers
Please explain I'm not given anything else so I am not sure how to do it. I'm only given the wavelength
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For the following wavelength determine if the atmospheric
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Here's what I think I have to do:
I think I need to use beer's law. Abs=ebc; e=Abs/bc.
b is 1.66 cm. I think c is .400 M NiSO4, but I'm not sure. I
also think Abs is 0.758 given the graph. (If wavelength is 380 nm,
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I'm not sure how to answer. how do I figure out the
wavelength? or the speed of the wave? can someone please help me
answer these 3 questions? I would appreciate it.
5. For the waves pictured below (physics.stackexchange.com); a. Determine the wavelength. b. If 637 waves pass a point every 241.0 seconds, determine the period and the frequency of the wave. c. What is the speed of the wave?
PLEAS SHOW all work and
EXPLAIN all steps THANK YOU
- A small, opaque, diffuse object at T, 400 K is sus- pended in a large furnace whose interior walls are at Tf = 2000 K. The walls are diffuse and gray and have an emissivity of 0.20. The spectral, hemispherical emissivity for the surface of the small object is given below. 12. 0.7 0.5 0 1 3 a (um) (a) Determine the total emissivity and absorptivity of the surface....
PROBLEM: Predict the molar absorptivity value of copper
sulfate pentahydrate at 380 nm.
Here's what I think I have to do:
I think I need to use beer's law. Abs=ebc; e=Abs/bc.
b is 1.66 cm. I think c is .400 M NiSO4, but I'm not sure. I
also think Abs is 0.758 given the graph. (If wavelength is 380 nm,
then it should be between 0.598 and 0.798, right?) My answer is
1.14 L/mol*cm, but not sure if I am...
Question: How can I determine the sample size
given the standard error (SE <= 70), and in the confidence
intervals of 95% and 85% using t-tables.
Side Note: I am studying for my finals and have
been asked to answer the following question but I am not completely
sure how to do so. I believe I would have to have the standard
deviation provided to answer this, but am not completely sure if
that is the case. If this does...
Assume all the surfaces given in the following figure having an emissivity- 0.20The surfaces are maintained at uniform temperatures as indicated on the figure. If IW-4M determine i The view factor of surface 1 on surface 3, Fi ii The net rate of radiation heat transfer between surface 1 and 3, Qn I" T,-300 K 4m T,-400 K 3 m T- 500K 2 m
Assume all the surfaces given in the following figure having an emissivity- 0.20The surfaces are maintained...
Hello, I am asked to determine whether there is 1, 2, or no
triangles. I am not sure on how I am supposed to do this. I started
by using the law of sines and show the steps on my paper. Please
correct me if I am wrong. If I am going in the right direction
please tell me what else I need to do. Please provide steps if
possible thanks! Ignore the pink highlighted numbers
0cmie whehs or nu...
If you use a different value for the molar absorptivity (s), which of the following variables change or don't change? Explain your answer for each with complete sentences (no more than three). 1. a. Kc b. AH c. AS Write down your calculated value for AH 2. below. Is the reaction endothermic of exothermic? Explain with at least one complete sentence. 3. Write down the values for AHn (in kJ/mol) and AS (in J/K-mol) that you calculated in the lab....
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