Chapter 6, Problem 6.133EP

0.2Kg of gas at 100⁰C is expanded isothermally and reversibly from 1MPa pressure to 100KPa. Take Cv=718J/Kg.K and R= 287J/Kg.K.Calculate: a. The work b) the change in internal energy c) the heat transfer

Steam at 7 bar, dryness fraction 0.96, is throttled-down to 3.5 bar. Solve for the change of entropy per unit mass of steam and show the process on T-s diagram.

Find the enthalpy of steam at 0.1975 MPa with specific internal energy of 2700 kJ/kg

If 528 kJ of heat are added to 2.25 kg of helium at constant volume process when the initial temperature is 40 deg. C, find: the change in enthalpy in kJ 869.5 889.5 879.5

Calculate the workdone, heat transfer and change in entropy.  Do not need to solve.  I just need the  steps to solve it e.g equations etc.

Number 3

If 6 liters of air at a pressure of 100 kPaa and 25 0 C are compressed reversiblyaccording to PV 2 = C, until the volume becomes 2 liters. Please answer the following a. The thermodynamic process the problem representsb. the pressure, temperature, and volume after the processc. change in internal energy, change in enthalpy and change in entropyd. work nonflow and heat transferred

steam at 11 MPa has a specific volume of 0.0196 m^3/kg , find the temperature, the enthalpy, and the internal energy.

A piston/cylinder has a water volume separated in VA = 0.3 m³ and VB = 0.4 m by a stiff membrane. The initial state in A is 1000 kPa, x = 0.8 and in B it is 1500 kPa and 250°C. Now the membrane ruptures and the water comes to a uniform state at 200°C. What is the final pressure? Find the work and the heat transfer in the process. Po mp cb A:H2O B:H20