An ideal gas is expanded from 5 bars to 1 bar through isentropic(reversible and adiabatic) operation...

An ideal gas is expanded from 5 bars to 1 bar through isentropic(reversible and adiabatic) operation of a turbine. For ambient conditions at 25°C and 1 bar, calculate the exergy of the turbine when the gas inlet temperature to the turbine is:

I) above ambient conditions at 250°C (8marks)

ii) below ambient condition at -50°C (8marks)

iii) comment on your answer to I and ii above (4marks)

(Cp=1.0KJ/Kg.K , n=1.4)

Expert Solution

Amanda K answered 7 months ago

An ideal gas is expanded from 10 bar to 1.0 bar at constant temperature. Calculate deltaU,...

An ideal gas is expanded from 10 bar to 1.0 bar at constant temperature. Calculate deltaU, deltaH, and deltaS. CP = 5/2 R.

Ten moles of an ideal gas at 5 bar and 600 K is expanded adiabatically till...

Ten moles of an ideal gas at 5 bar and 600 K is expanded adiabatically till its pressure becomes 1/5th the initial pressure. Then its compressed at constant pressure and finally heated at constant volume to return to its initial state, calculate: (a) heat transfer (b) work transfer (c) internal energy and enthalpy change for each process, and for the entire cycle.Based on the results of internal energy change and enthalpy change, is the entire process follows the condition of...

One mole of an ideal monatomic gas is expanded from an initial state at 3 bar...

One mole of an ideal monatomic gas is expanded from an initial state at 3 bar and 450 K to a final state at 2 bar and 250 K. There are two different paths for this expansion: path 1: (1 mole ideal gas, 3 bar, 450 K) → (1 mole ideal gas, 3 bar, 250 K) → (1 mole ideal gas, 2 bar, 250 K) path 2: (1 mole ideal gas, 3 bar, 450 K) → (1 mole ideal gas,...

10.0 L of an ideal gas at 0°C and 10.0 bar are expanded to a final...

10.0 L of an ideal gas at 0°C and 10.0 bar are expanded to a final pressure of 1.00 bar CV = 3/2 R. Calculate deltaU, deltaH, q, w, and deltaS if the process is: a) reversible and isothermal b) irreversible and adiabatic

One mole of an ideal monatomic gas is taken through the reversible cycle shown in the...

One mole of an ideal monatomic gas is taken through the reversible cycle shown in the figure. Generic_PV_01.png Process B→C is an adiabatic expansion with PB=11.0 atm and VB=4.00×10-3 m3. The volume at State C is 9.00VB. Process A→B occurs at constant volume, and Process C→A occurs at constant pressure. What is the energy added to the gas as heat for the cycle? Incorrect. Tries 6/10 Previous Tries What is the energy leaving the gas as heat? Tries 0/10 What...

In thermodynamics What are the common questions asked regarding Adiabatic Isochoric Isobaric Isothermal Isentropic Isenthalpic Reversible...

In thermodynamics What are the common questions asked regarding Adiabatic Isochoric Isobaric Isothermal Isentropic Isenthalpic Reversible Expansion Compression I just want to familiarise myself with the common questions that can be asked regarding the following processes and a good way to solve each type of question Thank you (I’m familiar with all the equations/derivations/definitions/cycles)

An ideal gas is taken through a complete cycle in three steps: adiabatic expansion with work...

An ideal gas is taken through a complete cycle in three steps: adiabatic expansion with work equal to I25 J, isothermal contraction at 325 K, and increase in pressure at constant volume. (a) Draw a p-V diagram for the three steps. (b) How much energy is transferred as heat in step 3, and (c) is it transferred to or from the gas?

5 moles of ideal gas is initially at 300 K and 5 bar. It is compressed...

5 moles of ideal gas is initially at 300 K and 5 bar. It is compressed to 10 bar at 300 K. This change is carried out by two different reversible processes: A: heating at constant volume followed by cooling at constant pressure B: cooling at constant pressure followed by heating at constant volume Depict these processes on a PT graph. (Hand drawn on engineering sheet would suffice). Calculate ΔU, ΔH, Q, and W requirements for each path. Cv=20.78 J/mol.K...

5. (IB) An ideal gas at an initial pressure of 4.0 × 105 Pa is expanded...

5. (IB) An ideal gas at an initial pressure of 4.0 × 105 Pa is expanded isothermally from a volume of 3.0 m3 to a volume of 5.0 m3. a) Calculate the final pressure of the gas. b) On graph paper, sketch a graph to show the variation with volume V of the pressure p during this expansion. c) Use the sketch graph in (b) to: (i) estimate the work done by the gas during this process (ii) explain why...

Argon at 400 K and 50 bar is adiabatically and reversibly expanded to 1 bar through...

Argon at 400 K and 50 bar is adiabatically and reversibly expanded to 1 bar through a turbine in a steady process. Compute the outlet temperature and work derived per mole.

Question