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
KiRa [710]
3 years ago
6

Calculate the hfg and sfg of steam at 120oC from the Clapeyron equation, and compare them to the tabulated values.

Chemistry
1 answer:
den301095 [7]3 years ago
5 0

Answer:

The tabulated values at 120 C of <u><em>hfg = 2202.1</em></u><u> kJ/Kg </u>and <u><em>sfg </em></u><u>= 5.6 </u>

<u>kJ/Kg.K</u>

Explanation:

According to Clapeyron Equation :

h_{fg}=TV_{fg}\left (\frac{\partial P}{\partial T}  \right )_{sat}

=T(V_{g}-V_{f})_{120^{0}}\left ( \frac{\Delta P}{\125^{0}-115^{0}} \right )

Taking P2 at temperature 125 and P1 at 115 degree Celsius .

T = 120 + 273.15 = 393.15 K

P2 = 232.23 kPa and P1 = 169.18kPa

(these are experimental values given in the Data)

= 393.15(0.88133 -0.001060\ m^{3}/Kg)\frac{232.23-169.18 kPa}{10}

h_{fg} = 2206.8 kJ/Kg

S_{fg}=\frac{h_{fg}}{T}

\frac{2206.8}{393.15}

= 5.6131 kJ/Kg.K

The tabulated values at 120 C of <em>hfg = 2202.1</em> kJ/Kg and <em>sfg </em>= 5.6131

kJ/Kg.K

You might be interested in
A drought is best defined as
Lapatulllka [165]
A drought is a period of drier-than-normal conditions that results in water-related problems.<span> When rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth to water in wells increases.</span>
5 0
3 years ago
One mole of ice at 0°C is added to two moles of water at 50°C under a constant external pressure of 1 atm. This process is carri
kotykmax [81]

Answer:

T2 = 29.79°C

Explanation:

Equliibrium signifies that heat loss = heat gained

Heat gained by Ice;

H = ML

Mass, M = Number of moles * Molar mass = 1 * 18 = 18g

l = 6.01 k J m o l = 334 J/g

C = 4.186 J/g

H =  18(334)

H = 6012

Heat lost by water

H = MCΔT

H = 18 * 4.186 * (50 - T2)

H = 3767.4 - 75.348T2

Since H = H, we have;

6012 = 3767.4 - 75.348T2

- 75.348T2 = 3767 - 6012

T2 = 2245 / 75.348

T2 = 29.79°C

8 0
2 years ago
What safety precautions are needed when running a brine electrolysis plant
nikdorinn [45]
Good ventilation as a product of it is pure Cl2  gas 
4 0
3 years ago
balance the following equation by oxidation number method KMnO4 + Na2So3 gives Mno2 + Na2 So4 + Koh​
belka [17]

Answer:

good i think

Explanation:

yes correct

7 0
3 years ago
What is the value of quantum numbers (n, l, ml, ms) of 2p^3?​
eduard

Answer:

Explanation:

First digit of the 2p^3  gives you value of n,  in this case its = 2, So, n= 2

Second alphabet gives you the value of l,

l=0 =s

l=1 =p

l=3=d

l=4=f

since  "p" is the alphabet  in 2p^3, so in your case lt shoudlbe = 1 right?

ml= -l to +l , that is -1, 0, +1

Ms= +1/2  or -1/2 alaways remains same foe evrything.

6 0
2 years ago
Other questions:
  • When the skateboarder reaches the top of the half-pipe, what type of energy is at it's maximum?
    12·1 answer
  • Which of the following reactions is the least energetic? Question 18 options: ATP + H2O → ADP + Pi ATP + H2O → AMP + PPi AMP + H
    6·1 answer
  • Explain what happens in a nuclear chain reaction
    6·1 answer
  • 4 what is the net amount of heat released when two moles of c2h6(g) are formed from its elements at 101.3 kpa and 298 k?
    8·2 answers
  • Protons and neutrons strongly attract when they
    13·1 answer
  • What is a base used in toothpaste?
    8·1 answer
  • What exactly is a proton? Is it a member of the periodic table?
    6·1 answer
  • 27. Apply the Pauli exclusion principle, the aufbau princi-
    6·1 answer
  • What’s the formula for sodium oxide
    13·2 answers
  • Which best describes the source of radiation heat
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!