Problem on frictional losses

A stream of propane is throttled from 4.298 bar and 450 K to 0.22 bar. This process is irreversible due to frictional losses at the nozzle.

a. In words or equations, why are frictional losses irreversible?

b. What is the final temperature of propane (after throttling)? The constant-pressure heat capacity of propane is 92.7 J/mol/K. Clearly state any assumptions you need to make to solve this problem.

View Complete Question

Related Questions in Chemical Engineering

Q : Rate of flow of nitrogen The feed to an

The feed to an ammonia synthesis reactor contain 25 mole% nitrogen and the balance hydrogen. The flow rate of the stream is 3000 kg/hr. Calculate the rate of flow of nitrogen into the reactor in kg/hr. (Hint: First calculate the average molecular weight of the mixture).

Q : Calculate the pressure Calculate the

Calculate the pressure at the bottom of a column of Ethanol 100 ft high using a pressure (force) balance in American Engineering Units.

Q : Problem on ideal gas law A stream of

A stream of steam at 1 bar and 400 K enters a compressor through a pipe with cross-sectional area of 0.1 m2 at a velocity of 5 m/s. The pressure of the outlet stream is at 5 bar, temperature is at 500 K, and velocity is 1 m/s. Assume the steam can be descri

Q : Thermodynamics Please can you look into

Please can you look into this assignment and let me know if its solve able.

Q : Matlab/Simulink assignment Modeling eye

Modeling eye movements is commonly performed in the Matlab/Simulink pacakage. Based on the Physiological evidence, oculomotor plants have been designed to simulate various eye movements. Choose two eye movement models, one for saccades and the other for pursuit, and simulate the following amplitudes

Q : Thermodynamics I) Sulphur dioxide (SO2)

I) Sulphur dioxide (SO2) with a volumetric flow rate 5000cm3/s at 1 bar and 1000C is mixed with a second SO2 stream flowing at 2500cm3/s at 2 bar and 200C. The process occurs at steady state. You may assume ideal gas behaviour. For SO2 take the heat capacity at constant pressure to be CP/R = 3.267+5

Q : Problem on laboratory solution You are

You are asked to make up a laboratory solution of 0.10 molar H2SO4 from concentrated (96%) H2SO4 at 56°F. The barometric pressure reads 750 mmHg. You look up the specific gravity of 96% H2SO4 and find it is listed at 1.858. Calculate: (a) th

Q : Problem on weight fraction A gas

A gas contains 350 ppm of H2S in CO2 at 72°F and 1.53 atm pressure. If the gas is liquified, what is the weight fraction H2S?

Q : Hh to determine the temperature that

to determine the temperature that occurred in a fire in a warehouse, the arson investigator noticed that the relief valve on a methane storage tank had popped open at 3000 psig, the rated value. Before the fire started, the tank was presumably at ambient conditions and the gage read 1950 psig. If th

Q : Problem on entropy A heater (heat

A heater (heat source temperature = 527 K) and turbine are connected in series as shown below:

Discover Q & A

Leading Solution Library

Avail More Than 1432386 Solved problems, classrooms assignments, textbook's solutions, for quick Downloads

No hassle, Instant Access

Start Discovering

18,76,764

1947305
Asked

3,689

Active Tutors

1432386

Questions
Answered

Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!

Submit Assignment