Calculate the entropy change of propane

Assignment Help Chemical Engineering
Reference no: EM131155962

Problem 5.10: Propane is isothermally compressed from 0.01 bar, -51.4 °C to 17 bar. The process takes place reversibly in a closed system.

a) Draw the PV graph of the process.

b) Calculate the entropy change of propane.

c) How much heat is exchanged between the system and its surroundings? Is this heat added to or removed from the system?

Additional data: Use the Lee-Kesler graphs for enthalpy and entropy. The saturation pressure of propane at -51.4 °C is 0.66 bar.

Take the ideal-gas CP of propane at these conditions to be constant and equal to 67 J/mole K.

Reference no: EM131155962

Questions Cloud

Calculate the entropy of propane at its critical point : A member of our engineering team objects that the reference state is not valid because a substance is not ideal at the critical point. What is your response?
Draw an appropriate er diagram : Draw an appropriate ER diagram - Use the symbols as prescribed in your course-textbook to draw the ER diagram (ERD) for the above case study.
Are they able to climb in and out of a tub : Dressing. Are there any difficulties with gross movements such as pulling on clothes, or fine motor movements, such as buttoning, or tying shoes? With reaching over the head, such as when brushing the hair?
Calculate the following properties of isobutane : The ideal-gas constant-pressure heat capacity may be taken to be constant and equal to 96.5 J/mol K.
Calculate the entropy change of propane : Additional data: Use the Lee-Kesler graphs for enthalpy and entropy. The saturation pressure of propane at -51.4 °C is 0.66 bar. Take the ideal-gas CP of propane at these conditions to be constant and equal to 67 J/mole K.
Reference to relevant legal authority : You are required to support your answer by reference to relevant legal authority
What is the entropy change of n-octane : Calculate the heat that must be supplied to the system to maintain isothermal conditions.
Explain and communicate why organization or department exist : Organizations operating from the mature end of the quality continuum know that their mission is much more than a catchy slogan or a poster on the wall. The mission defines the system's identity. The mission statement is used to explain and communi..
Calculate the amount of heat and work involved : Following a procedure analogous to that in Example 5.2, obtain an expression for the coefficient of thermal expansion based on the van der Waals equation of state. Use the result to calculate the value of β for oxygen at 20 °C, 30 bar.

Reviews

Write a Review

Chemical Engineering Questions & Answers

  What is the equivalent value for a measure value of 150 ppm

If the face opening for a laboratory hood installation is to be 2 feet high and 5 feet wide, what volumetric flow rate is required to generate a face velocity of 100 ft/min?

  Calculate the time for the center to reach

A flat slab of Douglas fir wood 50.8 mm thick containing 30 wt% moisture is being dried from both sides (neglecting edges and ends). The equilibrium moisture content at the surface of the wood due to the drying air blown over it is held at 5 wt% mois..

  Determine the force applied to the plunger

For the electromagnet shown in Figure P12.4.3, the λ-i relationship for the normal working range is given by i = aλ2 + bλ(x - d)2, where a and b are constants. Determine the force applied to the plunger by the electric system.

  Estimate the kilograms required per hour

The following four solvents, with accompanying distribution coefficients in mass-fraction units, are being considered. Water and each solvent (C) can be considered immiscible. For each solvent, estimate the kilograms required per hour if a single ..

  Sketch the output waveform for the synchronous counter

Consider a series-carry synchronous counter with T flip-flops shown in Figure P6.2.29 in which the AND gates carry forward the transitions of the flip-flops, thereby improving the speed. Sketch the output waveform for the synchronous counter.

  Key components of supply chain management

Evaluate two to four (2-4) weaknesses that are evident in Honda's product life cycle. Generate a new product design and product selection, and then determine three (3) strategies that the organization needs in order to strengthen the operation. Pr..

  The ratio of volumes

In the reaction 2C8H18 + 25O2 --> 16CO2 + 18 H2O, the ratio of volumes of O2 to CO2 is ?

  Calculate the induced voltage

A four-pole, lap-wound armature has 144 slots with two coil sides per slot, each coil having two turns. If the flux per pole is 20 mWb and the armature rotates at 720 r/min, calculate the induced voltage, given that the number of parallel paths is..

  Transfer coefficient from a free water surface

Mass transfer coefficient from a free water surface to an adjacent moving air stream has been found to be 0.015 kg/m2-s. Estimate the rate of evaporation from a surface of 1 m2 at a temperature of 28 oc into an air..

  Department of chemical engineering

Technical specialists at the company have flagged part of an internal calculation by a junior engineer as potentially erroneous. The excerpt is given below. Please prepare a brief memo for our Quality Assurance department describing the errors and pr..

  How a supercritical flow changes to a subcritical flow

explain how a supercritical flow changes to a subcritical flow. You may need to refer text books and web pages to answer this question.

  Determine the speed of prime mover of the generator

A synchronous generator has a rotor with six poles and operates at 60 Hz.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd