Answer:
The FEM is a general numerical method for solving partial differential equations in two or three space variables (i.e., some boundary value problems). To solve a problem, the FEM subdivides a large system into smaller, simpler parts that are called finite elements.
Answer:
Smaller impurity atom will nullify some of the compressive strain of a dislocation in a crystal. Because, smaller impurity atoms located near a dislocation creates tensile strain on atoms around it thereby partially nullifying compressive strain at the dislocation.
Answer:
The pH of the solution will be equal to 5.46
Explanation:
The dissociation reaction of HCl is equal to:
HCl → H+ + Cl-
To solve the exercise we must first convert the µmoles to moles using the following conversion factor:
3.5µmoles x
= 3.5x
moles
Assuming a liter of solution, we can calculate the molar concentration by:
M =
Replacing:
M =
= 3.5x
moles/L
As this acid dissociates completely, the concentration of protons and chloride will be equal to 3.5x
moles/L
The pH will be equal to:
pH = -log[H+]
Replacing:
pH = -log[3.5x
] = 5.46
Answer:
B. The thickness of the heated region near the plate is increasing.
Explanation:
First we know that, a boundary layer is the layer of fluid in the immediate vicinity of a bounding surface where the effects of viscosity are significant. The fluid is often slower due to the effects of viscosity. Advection i.e the transfer of heat by the flow of liquid becomes less since the flow is slower, thereby the local heat transfer coefficient decreases.
From law of conduction, we observe that heat transfer rate will decrease based on a smaller rate of temperature, the thickness therefore increases while the local heat transfer coefficient decreases with distance.