Question

Convert the following values into mmHg A)Standard pressure B)31.2 psi C)7.0 atm D)32.0 in.Hg E)44.4 Pa

Answer #1

Compounds A and B have the following vapor pressures:
150 oF, PA= 600 mmHg, PB= 500
mmHg
200 oF, PA= 1000 mmHg, PB= 950
mmHg
Assume that these compounds form ideal solution,calculate the vapor
mole fraction of A and the total pressure VLE when the liquid mole
fraction of A is 0.50 and the temperature 175 oF.

A tank contains helium gas at 490. mmHg, nitrogen gas at 0.750
atm, and neon at 520. Torr. What is the total pressure in atm?
A) 2.08 atm B) 0.579
atm C) 1.01 × 103
atm D) 1.33
atm E) 1.60 ×
103 atm How is this done please?

A B C D E 1. Force per unit area is a) momentum, b) power, c)
energy, d) pressure, e) impulse.
A B C D E 2. The law which deals with pressure applied to a
confined fluid is a) Archimedes Principle, b) Pascal's Principle,
c) Bernoulli's Principle, d) Newton's Second Law.
PART 2 – PROBLEMS, If your answer differs by a little bit in the
last digit, remember that the answers here may have been rounded
off
A B...

A. The instruction booklet for your pressure cooker indicates
that its highest setting is 12.7 psi . You know that standard
atmospheric pressure is 14.7 psi, so the booklet must mean 12.7 psi
above atmospheric pressure. At what temperature in degrees Celsius
will your food cook in this pressure cooker set on "high"? Express
your answer numerically in degrees Celsius.
B.
Which of the following factors affect the vapor pressure of a
liquid?
Check all that apply.
a. type of...

Convert the following infix expressions to postfix.
a * b + c – d
a + b / (c + d)

Consider the following wave function:
Psi(x,t) = Asin(2piBx)e^(-iCt) for 0<x<1/2B
Psi(x,t) = 0 for all other x
where A,B and C are some real, positive constants.
a) Normalize Psi(x,t)
b) Calculate the expectation values of the position operator and
its square. Calculate the standard deviation of x.
c) Calculate the expectation value of the momentum operator and
its square. Calculate the standard deviation of p.
d) Is what you found in b) and c) consistent with the
uncertainty principle? Explain....

A flask is filled with PCl5 to a pressure of 2.00 atm at 300°C
and allowed to come to equilibrium according to the reaction:
PCl5(g) ⇄ PCl3(g) + Cl2(g) Analysis shows the total pressure in the
flask at equilibrium is 3.96 atm. Calculate the equilibrium
constant Kp for the reaction.
A)49.0
B)3.96
C)96.0
D)0.886
E)7.84

A B C D E 10. With the temperature held constant, the pressure
of a gas in a cylinder with a movable piston is increased from 30
kPa to 90 kPa.
The initial volume of the gas in the cylinder is 0.6 m^3. What
is the
final volume of the gas after the pressure is increased? a) 36
m^3,
b) 0.2 m^3, c) 18 m^3, d) 54 m^3, e) there is no change in
volume.
A B C D E...

Assuming a particular carbon fiber strand has a mean breaking
strength of 1500 psi, a standard deviation of 125 psi, and the
breaking strength is approximately normally distributed, answer the
following question: If the company who produces this carbon fiber
strand wants to guarantee that 99.9% of their strands will
withstand a specific pressure, what would that pressure be?
A. 1500
B. 1113.7
C. 1209.2
D. 1886.3

4) Convert the following binary values from 4 bit numbers to 7
bit values
a) 2s complement value: 0101
b) 2s complement value: 1010
c) Unsigned binary value: 0101
d) Unsigned binary value: 1010
e) Sign Magnititude value: 0101
f) Sign Magnititude value: 1010

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