Tell me what your ideas are for this multiple choice question
Compared to semiconductors, metals, and ceramics, polymers:
a) have lower melting points
b) tend to have lower densities
c) deform plastically to a higher extent
d) have lower electrical conductivity
e) all of the above
Ok, I reworked it again let me know what you link:
(900 J/Kg-K)(0.2Kg)(700oC-660oC)+(200g)(1 mol/26.96g)(10.67 kJ/mol)+(900J/Kg-K)(0.2Kg)(660oC - Tf)
(486 J/Kg-K)(3Kg)(Tf - 20oC)
I took the sum of the LHS and the RHS and put them both into excel
I set Tf...
That's actually why I posted this, I had a feeling that using the 20oC on the Aluminum side didn't make sense, so I think the left hand side should be changed to (900 J/Kg-K)(0.2Kg)(Tf, Al - 660oC).
Is that correct, or am I still missing something else?
I want to take a liquid metal, Aluminum at 700oC and pour it into a steel mold starting at 20oC. For the purpose of the question let’s say that the heat transfer is 100% with no losses to the surroundings.
Here are some numbers:
Mass = 200 g = 0.2 Kg
Ti, Al = 700oC
Cp = 900 J/Kg-K...
I worked on the problem a bit more:
I found the pipe area
A= 0.785 * Diameter2
and Q or liquid flow rate = Rho * V * Area
so in order for the first velocity at the drain to be 15l/s, the Q must be at least 66.27 l/s
I'm still pretty stuck though and not sure if I'm...
I'm looking for a formula that has velocity at a certain point in a pipe. I only have velocity and pipe diameter.
The problem goes something like:
A Tube with a 0.075 meter diameter has four drains equally spaced apart
with a cap at the far end. Each of the four drain...