1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetllana [295]
2 years ago
5

Carbon dioxide enters an adiabatic compressor at 100 kPa and 300 K at a rate of 0.5 kg/s and leaves at 600 kPa and 450 K. Neglec

ting kinetic energy changes, determine (a) the volume flow rate of the carbon dioxide at the compressor inlet and (b) the power input to the compressor. Amswers: (a) 0.283 m^3/s, (b) 68.8 kW
Chemistry
1 answer:
Sergeeva-Olga [200]2 years ago
5 0

Answer:

(a) Q_1=0.283m^3/s

(b) W=68.8kW

Explanation:

Hello,

(a) Based on the inlet conditions, we see that such carbon dioxide has an ideal behavior, so the inlet specific volume is:

v_1=\frac{RT}{PM}=\frac{8.314\frac{Pa*m^3}{mol*K}*300K}{100000Pa*44g/mol} =0.000567m^3/kg

Thus, the volumetric flow rate turns out:

Q_1=0.000567m^3/g*0.5kg/s*1000=0.283m^3/s

(b) Now, by writing and energy balance we have:

mh_1+W=mh_2

Thus, since the ideal gas enthalpy does not depend on the pressure, in Cengel's A-20 table, the corresponding enthalpies at 300K and 450 K are 9431kJ/kmol and 15483kJ/kmol whose values in kJ/kg are 214.34 kJ/kg and 351.89 kJ/kg respectively, thus:

W=0.5kg/s*(351.89-214.34)kJ/kg=68.8kW

Best regards.

You might be interested in
Check my answer?
rusak2 [61]
Yes that is correct because hypotheses should be testable meaning it can be proven wrong and it has to be reasonable meaning it should make sense. 
8 0
3 years ago
Read 2 more answers
Solve for b, when c= a/b and a = 5.8 and c= 7.4
vova2212 [387]

Answer:

b= 42.92

Explanation:

5.8 x 7.4 = 42.92

4 0
3 years ago
How many significant figures are in 195.01
Masja [62]

Answer:

difficult to answer, need a bit more detail

5 0
3 years ago
How does a scientific theory differ from a guess or an opinion?​
natima [27]

Answer:

Scientific theory differs from a guess or opinion because a scientific theory is a system of ideas that explains many related observation and is supported by a large body of evidence acquired through scientific investigation while guesses and opinions may not reliably predict an outcome, have evidence to back up the theory

Explanation:

5 0
3 years ago
1. In which of these forms does acid precipitation reach the surface of<br><br> Earth?
vodomira [7]

Answer:

Wet deposition

Explanation:

when the chemicals produced in the Earth can evaporate and reach the clouds, it will mixed with the water inside the clouds and form a slightly acid water than when is time to deposit the water into the Earth as snow, rain, fog or mist, the chemicals will travel with the water dissolved in it.

When they reach the soil, eventually, the water will  evaporate or will be absorbed by soil, so the chemicals that are left behind, will reach the surface of Earth.

Depending where the chemicals were deposit, they can contaminate the sea, or other water bodies, or soil areas of crops, buildings, etc.

Hope this info is useful.

5 0
3 years ago
Other questions:
  • How is a heterogeneous mixture different from a homogeneous mixture?
    13·1 answer
  • What occurs when a gas is changed into a liquid
    13·1 answer
  • What concentration of the lead ion, pb2+, must be exceeded to precipitate pbf2 from a solution that is 1.00×10−2 m in the fluori
    11·1 answer
  • Combining Boyle's law and Charles' law forms one presure-temperature-volume relationship and holds the mass of the gas constant.
    15·1 answer
  • In order for a liquid particle to become a gas it must: (choose all that apply) overcome the attractive forces of other liquid p
    6·1 answer
  • What Type of chemical reaction is:<br> BaCl2 + 2 AgNO3 --&gt; 2 AgCl + Ba(NO3)2
    12·1 answer
  • The structural level of a protein least affected by a disruption in hydrogen bonding is the
    11·2 answers
  • Explain why isotopes of the same element behave differently in nuclear reactions but not in chemical reactions
    15·2 answers
  • What is the oxidation number of an element?
    14·1 answer
  • A
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!