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pishuonlain [190]
3 years ago
14

What are the initial questions that a systems analyst must answer to build an initial prototype of the system output.

Engineering
1 answer:
Luden [163]3 years ago
3 0
Fjdidndjdudbcjdndn the sue Sufi
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erastova [34]

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its false

i think it is right

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3 years ago
Technician A says that the first step in diagnosing engine condition is to perform a thorough visual inspection. Technician B sa
mojhsa [17]

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5 0
3 years ago
An equilibrium mixture of 3 kmol of CO, 2.5 kmol of O2, and 8 kmol of N2 is heated to 2600 K at a pressure of 5 atm. Determine t
garri49 [273]

Answer:

x_{CO}=0.0203\\x_{O_2}=0.0926\\x_{CO_2}=0.227\\x_{N_2}=0.660

Explanation:

Hello,

In this case, we consider the reaction:

CO(g)+\frac{1}{2} O_2(g)\rightleftharpoons CO_2

For which the law of mass action is expressed as:

Kp=\frac{n_{CO_2}}{n_{CO}*n_{O_2}^{1/2}} (\frac{P}{n_{Tot}} )^{1-1-1/2}

Whereas the exponents are referred to the stoichiometric coefficients in the chemical reaction. Moreover, in table A-28 (Cengel's thermodynamics) the natural logarithm of the undergoing reaction at 2600 K is 2.801, thus:

K=exp(2.801)=16.46

In such a way, in terms of the change x the equilibrium goes:

16.46=\frac{x}{(3kmol-x)*(2.5kmol-0.5x)^{0.5}} (\frac{5}{13.5kmol-0.5x} )^{-0.5}

Hence, solving for x:

x=2.754kmol

Thus, the moles at equilibrium:

n_{CO}=3-2.754=0.246kmol\\n_{O_2}=2.5-0.5(2.754)=1.123kmol\\n_{CO_2}=x=2.754kmol\\n_{N_2}=8kmol

Finally the compositions:

x_{CO}=\frac{0.246}{0.246+1.123+2.754+8} =0.0203\\\\x_{O_2}=\frac{1.123}{0.246+1.123+2.754+8} =0.0926\\\\x_{CO_2}=\frac{2.754}{0.246+1.123+2.754+8} =0.227\\\\x_{N_2}=\frac{8}{0.246+1.123+2.754+8} =0.660

Best regards.

7 0
4 years ago
Help me, please! I'll give brainliest!
VLD [36.1K]

Answer:

Help with what???

Explanation:

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3 years ago
Why does the compression-refrigeration cycle have a high-pressure side and a low-pressure side?
Cloud [144]

Answer: D

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