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Problem 11.93 The vapor pressure of ethanol (C2H5OH) at 19 ∘C is 40.0 torr . A 0.800 g sample of ethanol is placed in a 2.80 L container at 19 ∘C . |
Part A If the container is closed and the ethanol is allowed to reach equilibrium with its vapor, how many grams of liquid ethanol remain? Express your answer to two significant figures and include the appropriate units. SubmitMy AnswersGive Up
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In: Chemistry
Evaluate the surface integral
| S |
F · dS
for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation.
F(x, y, z) = x i − z j + y k
S is the part of the sphere
x2 + y2 + z2 = 9
in the first octant, with orientation toward the origin
In: Math
Evaluate the surface integral
| S |
F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation.
F(x, y, z) =
xzey i −
xzey j + z
k
S is the part of the plane x + y +
z = 3 in the first octant and has downward orientation
In: Math
The Quest For Perpetual Motion It has been a tenet of physics that it is not possible to build a perpetual motion machine in a closed or isolated system. This fact has not stopped people from claiming to build such a machine. Explain why a perpetual motion machine violates the principles of thermodynamics. Do some research and provide an example of a supposed perpetual motion machine. Explain the machine in detail and why it does not exhibit perpetual motion.
In: Physics
Discuss the functional anatomy of the
hip.
Discuss the normal Angle of Inclination of the adult hip
and potential compensation patterns seen with excessive varus or
valgus angles.
Discuss the normal Femoral Torsion Angle of the adult
hip and potential compensation patterns seen with excessive
anterior or posterior angulation.
Discuss 3 planes of closed chain hip
osteokinematics.
Discuss the osteokinematics of contra-directional
lumbopelvic movements in the sagittal and frontal
planes.
In: Nursing
In: Economics
Suppose the investment is very sensitive to the interest rate.That is, the function I(r), used to derive the IS curve, is very steep (that is, when we graph it with r on the vertical axis, it is very flat, almost horizontal). Graphically derive the IS curve in the closed economy. What can you say about the steepness IS curve? In this context, which policy do you think is likely to be more effective? Fiscal policy or monetary policy?
In: Economics
22.
A project will not produce any cash flows for two years. Starting in the third year, it will produce annual cash flows of $11,900 a year for two years. The project initially costs $43,600. In Year 6, the project will be closed and as a result should produce a final cash inflow of $50,500. What is the net present value of this project if the required rate of return is 8.7 percent?
$5,474.76
$3,935.56
$5,447.76
$7,465.95
$4,802.57
In: Finance
Ex. 840. A proportional controller, Kp, is desired for the plant 1/( (s) (s+ 8) (s+11) ). Design the unity feedback system so that the dominant poles indicate a closed loop step response with a 36% overshoot. What is Kp, zeta, wn, wd, Ts, Tp, the velocity constant (Kv) and the resulting SS error for a ramp input, and the gain, Kp, for marginal stability. ans:9
In: Electrical Engineering
Evaluate the surface integral
| S |
F · dS
for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation.
F(x, y, z) = x i + y j + z4 k
S is the part of the cone z =
| x2 + y2 |
beneath the plane
z = 1
with downward orientation
In: Advanced Math