The ______________ of a given solute is the amount of solute that will dissolve in a specified mass of solvent at a given temperature to produce a saturated solution
Fill in the blank(s) with correct word
solubility
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A hydrogen atom is in the 6h state. Which one of the following is not a magnetic quantum number for that state?
A) 0 B) 1 C) 2 D) 4 E) 6
Which is more energetically favorable, biogas or ethanol? Does your answer differ at different places? Explain
What will be an ideal response?
Which jovian planet has the most extreme seasonal changes, and why?
A) Uranus, because of its extreme axis tilt B) Jupiter, because of its large mass C) Saturn, because it has an axis tilt similar to Earth D) Neptune, because of its varying distance from the Sun
Evaluate the rate of heat loss per meter from pressurized water flowing at 200°C through a 10-cm-ID pipe at a velocity of 3 m/s. The pipe is covered with a 5-cm-thick layer of 85% magnesia wool which has an emissivity of 0.5. Heat is transferred to the surroundings at 20°C by natural convection and radiation. Draw the thermal circuit and state all assumptions.
GIVEN
? Pressurized water flowing through an insulated pipe
? Water temperature (Tw) = 200°C = 493 K
? Pipe inside diameter (Di) = 10 cm = 0.1 m
? Water velocity (V) = 3 m/s
? Magnesia wool insulation thickness (t) = 5 cm = 0.05 m
? Emissivity of the wool insulation (?) = 0.5
? Temperature of the surroundings (T?) = 20°C = 293 K
FIND
? The rate of heat loss per meter (q/L)
ASSUMPTIONS
? Steady state
? Pipe surface temperature can be considered constant and uniform
? Surroundings behave as a black body
? Pipe is horizontal
? Thermal resistance of the pipe is negligible
? Ambient air is still
? Pipe thickness is negligible
? Fully developed flow
SKETCH
