Get in touch with us
Send us an e-mail
Question
1. (A) A radioactive metal atom decays by emitting an alpha particle. The alpha particles are collected as an ideal gas. The volume of the gas collected was 12.05 mL at 765 mmHg and 23°C. How many atoms decayed during the period of the experiment?
(B) You vaporize a liquid substance at 100°C and 755 mmHg. The volume of 0.548 g of vapor is 237 mL. What is the molecular weight of the substance?
2. Starting out on a trip into the mountains, you inflate the tires in your car to a recommended pressure of 3.21x105 Pa on a day when the temperature is –5.0°C. You drive to the beach, where the temperature is 28.0°C. Assume that the volume of the tire has been increased by 3%. What is the final pressure in the tires? The manufacturer of the tire recommends that you not exceed the recommended pressure by more than 10%. Has the limit been exceeded?
3. (A) One good way to treat nonideal gases is the Redlich-Kwong equation of state,
P = RT /(V-b) - a/√T(V(V+b))
where a and b are constants that depend the identity of the gas (i.e., they can be found from critical constants similar to what is done for the van der Waals equation of state, but the formulas are different). Determine the formula for the following partial derivative of the Redlich-Kwong equation of state,
(∂P/∂Vm)T
(B) Five moles of methane are confined to a container with volume 20L at 300K. Estimate the pressure using the ideal gas equation of state. Give your answer in atm.
(C) Estimate the pressure in B using the van der Waals equation of state. Give your answer in atm.
(D) Estimate the pressure in B using the Redlich-Kwong equation of state given the Redlich-Kwong constants for methane are a = 3.2 Pa m^{6}mol^{2}K^{½} and b = 2.96 × 10^{-5} m^{3}mol^{-1}. Give your answer in atm.
4. Calculate the values of the van der Waals parameters a and b for carbon monoxide using the critical constants: T_{C} = 134 K; P_{C} = 3.546 MP_{a}; V_{C} = 0.099 L/mol.
Summary
These questions belong to Chemical Engineering and they deal with radioactive decay to alpha particles, standard tire inflation and effect on temperature changes, Redlich-Kwong equation state for partial derivative and calculating van der Waals parameters for carbon monoxide. Each of these questions has been answered in the solution along with calculations.
Note: The solution is in handwritten format.
Download Full Solution
Computer programming languages are such tough assignments to deal with. I am glad that I found HelpWithAssignment and their online Visual C++ programming assignment help expert. I am very impressed with the quality and accuracy of the coding. Experts and quality control definitely make the Visual C++ programming language assignments free of plagiarism and unwanted errors.
The best part about the assignments is the quality of writing that I have received every time. The “real world” examples suggested by the online Variance analysis assignment experts with requisite numbers to back up the examples help take my variance analysis – performance metrics assignment stand apart from the others in my class and have helped improve my over all grade point average.
I always trust HelpWithAssignment as they have always provided the required support and assistance. By assistance, I mean, they do not disappear after providing one accounting homework help but stay in touch for clarifying minor doubts and as a student I find it to be a very lucrative deal.
I must confess that I was horribly bad in logic circuit designs. I just messed up the symbols and eventually my grades hampered. But whilst browsing the net I landed on HwA and ever since I started taking their help, I never had to look back. The experience hand been fantastic and I recommend all my friends to come and take help from this website.
The time and effort given to each individual student by the New Zealand Accounting Assignment writing experts at HwA is what makes me keep coming back to them for all my accounting assignment help requirements. I am a post graduate student of accounting from the University of Otago in Christchurch and with the help of the accounting assignment help experts from New Zealand I have been performing better and better in class.
Comments
this is a very good website
I have 50 questions for the same test your page is showing only 28
hi can you please help or guide me to answer my assignments. thanks
hi can anyone help or guide me to my assignments. thanks
This solution is perfect ...thanks
Hello Allison,I love the 2nd image that you did! I also, had never heard of SumoPaint, is something that I will have to exolpre a bit! I understand completely the 52 (or so) youtube videos that you probably watched. Sometimes they have what you want, sometimes they don't! However, it is always satisfying when you are able to produce something that you have taught yourself. Great job!Debra 0 likes
Perfect bank of solution.
great !
thanks for the quick response. the solution looks good. :)
thnx for the answer. it was perfect. just the way i wanted it.
works fine.