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Hexane is throttled from 18.15 bar, 507.6 K to 0.1 bar. Determine the temperature at the exit and the entropy generation.
Steam is cooled under constant pressure from 400oC, 3 bar to a final state that contains wet steam with Xv = 0.9. (hint: for this problem it might be easier to use the Mollier diagram than the steam tables)
a. Determine ?H and ?S.
b. Determine the heat needed to increase Xv to 1.
3. A tank (V = 0.19 m3 ) full of cyclohexane and T = 554 K explodes at P = 20 bar. The final state of cyclohexane is a vapor at 1 bar.
a. What is the final temperature of the cyclohexane? The ideal gas, constant pressure heat capacity of cylcohexane is 200 J/mol/K.
How much energy was released in the explosion?
4. An insulated tank at 20 bar contains wet steam with 20% moisture. The tank is emptied by throttling its contents to the atmosphere, assumed to be at 1 bar. Assuming the entropy generation inside the tank is zero and the initial specific entropy inside the tank is Si, what is the entropy of the tank (in J/K) when it is half empty by mass?
Depending upon the penetration power, there are two parts of X-rays Hard X-rays More penetration power More frequency of the order of ≈ 1019 Hz Lesser wavelength range
A sodium cation has different number of electrons from: (1) O 2- (2) F - (3) Li + (4) Al +3 Ans: Li +
What are the three particles that make up an atom? Atoms are made up of electrons, protons, and neutrons. The protons and neutrons are found together in the core of the atom, k
Essential properties of the medium for wave propagation: (i) Elasticity: So that particle can return to their mean position, after having been disturbed. (ii) Inertia : So t
Write down differential equation of a forced oscillator related to an external periodic force. Set up the solution of it.
Illustrates the Electric Motors? An electric motor is basically the reverse of an electric generator. It is a machine which turns electrical energy - AC from the wall or dire
(i) A closed system consisting of 2 kg of a gas undergoes a process during which the relationship between pressure and specific volume is pv1.3 = c. The process begins with 1 p =1b
Pfund series: The series which define the emission spectrum of hydrogen while the electron is jumping to the fifth orbital. All lines are in the infrared portion of the spectr
When the curve is not simple or linear as diode valve is known as non-ohmic device.
how gas expened ?
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