Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemical Engineering Expert

problem 1: Heat capacities Cv and Cp are defined as temperature derivatives respectively of U and H. Show that the general expression connecting Cp to Cv is:

Cp = C + T(∂P/∂T)V (∂V/∂T)P

problem 2: Liquid isobutane is throttled through a valve from an initial state of 360 K and 4000 kPa to a final pressure of 2000 kPa. Estimate the entropy change of the isobutane. The specific heat of liquid isobutane at 360 K is 2.78 J/g/°C. For volume calculation, use equation:

V = VcZc(1-Tr)^0.2857

Given: Vc = 262.7 cm3/mol, Zc= 0.282 and Tc= 408.1 K

Also, change in T and V is negligible during throttling process.

problem 3: A concentrated binary solution containing mostly species 2 (but x2 not equals to 1) is in equilibrium with a vapor phase containing both species 1 and 2. The pressure of this two-phase system is 1 bar; and the temperature is 25°C. Determine from the following data good estimates of x1 and y1.

Given: H1 = 200 bar, P2sat = 0.1 bar

State and justify all assumptions.

problem 4: For the acetone(1)/methanol(2) system a vapor mixture for which z1 = 0.25 and z2 = 0.75 is cooled to temperature T in the two-phase region and flows into a separation chamber at a pressure of 100 kPa. If the composition of the liquid product is to be x1= 0.175, what is the required T and what is the value of y1. Also find out the molar fraction of the system in the vapor phase.

Given:

lnγ1 = 0.64 x22
lnγ2 = 0.64 x12

ln(Psat) = A –  B/(C + T(°C))

Where, for Acetone: A = 14.3916; B = 2795.82; C = 230.00

for Methanol: A = 16.5938; B = 3644.30; C = 239.76

Chemical Engineering, Engineering

  • Category:- Chemical Engineering
  • Reference No.:- M91936

Have any Question? 


Related Questions in Chemical Engineering

A closed and sealed rigid tank contains 11 kg of liquid

A closed and sealed rigid tank contains 11 kg of liquid water at equilibrium with 1.17 kgof vapor at a pressure of 2 bar. The tank is equipped with two alarms: a pressure alarmthat will sound if the pressure exceeds 10 b ...

For the inertial system governed by the differential

For the inertial system governed by the differential equation design a feedback controller to stabilize the system and reduce the percentage overshoot below 10% with a settling time of less than 4 s.

According to experimental results for parallel airflow over

According to experimental results for parallel airflow over a uniform temperature, heated vertical plate, the effect of free convection on the heat transfer convection coefficient will be 5% when GrL/Re2L = 0.08. Conside ...

A 2-m3 tank initially contains a mixture of saturated-vapor

A 2-m3 tank initially contains a mixture of saturated-vapor steam and saturated-liquid water at 3000 kPa. Of the total mass, 10% is vapor. Saturated-liquid water is bled from the tank through a valve until the total mass ...

A process plant making 2000 tons per year of a product

A process plant making 2000 tons per year of a product selling for $0.80 per lb has annual direct production costs of $2 million at 100 percent capacity and other fixed costs of $700,000. What is the fixed cost per pound ...

Show that the bilinear transformation of a pd controller

Show that the bilinear transformation of a PD controller with a high-frequency pole that makes the controller transfer function proper does not yield a pole at z = -1.

Application capacitor with space charge between plates the

Application: Capacitor with space charge between plates. The parallel plate capacitor in Figure 6.41 is given. In addition to the data in Problem 6.1, there is also a charge density everywhere inside the material such th ...

A well is producing from a saturated oilreservoir with an

A well is producing from a saturated oilreservoir with an average reservoir pressureof 3000 psig. Stabilized flow test dataindicates that the well is capable of producing400 STB/day at a bottom-holeflowing pressure of 25 ...

A potential flow source having an intensity of 10m2s placed

A potential flow source having an intensity of 10m2/s, placed in the point of Cartesian coordinates (1;0), and a sink having identical intensity, placed in the point (-1;0), are combined with a uniform flow at 25 m/s, in ...

A wing generates a lift l when moving through sea-level air

A wing generates a lift L when moving through sea-level air with a velocity U. How fast must the wing move through the air at an altitude of 35,000 ft if it is to generate the same lift? (Assume the lift coefficient is c ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen