Chemistry, 16.10.2019 19:30 nalisas8329
A20-m long cylindrical titanium rod with diameter 3.0 cm initially at 600 k is immersed in large bath of engine oil at 320 k. the oil has a convective heat transfer coefficient of 24.0 w/m²-k; other properties can be found in table a.5. the properties of titanium can be found in table a.1 you may ignore heat transfer by radiation, and heat transfer from the flat ends of the cylinder. a. can lumped capacitance by used to solve for t(t)? b. determine the t(r) temperature profile for the rod after 20 seconds being immersed in the oil, and 5.0 minutes after immersion (sketch this on a t(r) vs. r plot; be as accurate as possible). c. how long will it take for the rod to cool to 400 k? d. if the oil were mixed so that it had turbulent flow and hoil = 1480 w/m2-k, show qualitatively on a plot how the temperature profiles t(r) would look. discuss any differences with your answer in b. note: you should use properties of the rod at 600 k. since density is only listed at 300 k, use that.
Answers: 2
Chemistry, 22.06.2019 01:30
Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%
Answers: 3
Chemistry, 22.06.2019 05:50
What are transitions between a liquid and a solid called? identify which way they are transitioning
Answers: 2
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 2
Chemistry, 23.06.2019 05:30
Calculate the temperature rise when 0.2g of propane is used to heat 400cm cubed of water.
Answers: 3
A20-m long cylindrical titanium rod with diameter 3.0 cm initially at 600 k is immersed in large bat...
English, 26.10.2021 02:20
History, 26.10.2021 02:30
Mathematics, 26.10.2021 02:30
English, 26.10.2021 02:30
History, 26.10.2021 02:30
Mathematics, 26.10.2021 02:30
History, 26.10.2021 02:30