Calculate the entropy change of methanol

Assignment Help Chemical Engineering
Reference no: EM131005761

Problem 1: One mol of methanol vapor is cooled under constant pressure in a closed system by removing 25000 J of heat. Initially, the system is at 2 bar, 200 °C.

a) Determine the final temperature.

b) Calculate the entropy change of methanol.

Additional data: boiling point of methanol at 2 bar: 83 °C; heat capacity of vapor: 60 J/mol K; heat capacity of liquid: 80 J/mol K; heat of vaporization at 2 bar: 36740 J/mol.

Reference no: EM131005761

Questions Cloud

Probability of winning a bet depends : Suppose in the gambler's ruin problem that the probability of winning a bet depends on the gambler's present fortune. Speci?cally, suppose that αi is the probability that the gambler wins a bet when his or her fortune is i. Given that the gambler'..
A high quality cad system uses : A high quality CAD system uses the following for printing drawing and graphs
Airplane ticket reservation system : What type of computer programming is used for airplane ticket reservation system?
Determine final temperature and amount of work : Steam in a closed system is compressed by reversible isothermal process in a heat bath at 250 °C, starting from an initial pressure of 15 bar. During the process, the steam receives 400 kJ/kg of work. Determine the final state and the amount of he..
Calculate the entropy change of methanol : One mol of methanol vapor is cooled under constant pressure in a closed system by removing 25000 J of heat. Initially, the system is at 2 bar, 200 °C. Determine the final temperature.
Probability that the gambler quits a winner : Suppose that on each play of the game a gambler either wins 1 with probability p or loses 1 with probability 1 - p. The gambler continues betting until she or he is either up n or down m. What is the probability that the gambler quits a winner?
Policyholder of the insurance company : Find the average premium received per policyholder of the insurance company of Example 4.27 if λ= 1/4 for one-third of its clients, and λ = 1/2 for two-thirds of its clients.
Transition probability matrices for ergodic markov chains : Let P(1) and P(2) denote transition probability matrices for ergodic Markov chains having the same state space. Let π1 and π2 denote the stationary (limiting) proba- bility vectors for the two chains. Consider a process de?ned as follows:
Genetic disorder brochure : You are creating a brochure, Poster or Powerpoint on a randomly selected genetic disorder. Please present your information as if I have no idea about this genetic disorder.

Reviews

Write a Review

 

Chemical Engineering Questions & Answers

  Propose a model which will show how temperature

Propose a model which will show how temperature in the tank changes with time. State assumption used. Solve this model to obtain T(t) given that T(t=200s) = 50°C.

  Load and unload explosives from a motor vehicle

Develop an answer to each of the following explosive related questions, using at least 200 words total for parts a and b. Paraphrased and/or quoted materials must have accompanying in-text and reference citations in APA format.The DOT regulation at 4..

  Outlet composition corresponding to equilibrium

The resulting products are cooled and passed over a medium-temperature shift catalyst that gives an outlet composition corresponding to equilibrium at 350 °C.

  Counter-flow double pipe heat exchanger

How long must the tube be made if the outlet oil temperature is 60 C? The Nusselt number for oil side is 5.56. F. water side.

  Determine the minimum electric potential difference

Determine the minimum electric potential difference (in volts) that must be applied to accelerate an a-particle so that on interaction with a hydrogen atom, a ground state electron will be excited to n = 6

  Determine the standard heats of reactions

Determine the standard heats of Reactions. Discuss the purpose of feeding oxygen to the reactor. Assuming no heat is lost to the surroundings, estimate the temperature of the gas and slag leaving the gasifier.

  Environmental protection agency

The U.S. Environmental Protection Agency (EPA) recommends that 222Rn levels not exceed 4 pCi per liter of air (1Ci=3.7x10^10 decay events per second; 1 pCi =1x10^-12 Ci).

  Fraction of the pump work

What range of flow rates can be achieved if the valve can be throttled down to quarter open? When the valve is quarter open, what fraction of the pump work is lost across the valve?

  Famous new zealand scientist ernest rutherford

6. Famous New Zealand scientist Ernest Rutherford was awarded a Nobel Prize in which field? 7. What is the chemical symbol for gold? 8. K is the chemical symbol for which element?

  The rule of 70 to calculate economic growth

How do you use the rule of 70 to calculate economic growth?

  Chemical reaction engg problem

Chemical reaction engg Problem- 6 The reaction , 2A

  How many moles of oxygen gas do you have at stp

What is the pressure of the oxygen gas if the vapor pressure for water at 25°C is 23.8 mm Hg?

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