Chapter 6, Problem 6.144EP

An automobile tire is inflated to 105 kPa at 30 deg. C. After being driven the temperature rises to 55 deg. C. Find the final pressure under isochoric process.

A piston/cylinder receives (control mass system) R-134a at 300 kPa and compresses it in a process where the entropy does not change. to a state of 1000 kPa, 60° C. Find the initial temperature, AND THE CHANGE IN 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

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

A 4 m3 cryogenic storage tank contains nitrogen at 110 K, with quality 25%. Saturatedvapor is now slowly withdrawn while some heat transfer takes place to a final state of110 K, x = 0.65. Find the mass withdrawn and the heat transfer.

A factory generates compressed air from 100 kPa, 17°C by compression to 800 kPa, 500 K, after which it cools in a constant pressure cooler to 300 K, (see Fig. P4.36). Find the specific compressor work and the specific heat transfer in the cooler. 1 2 3 Compressor -w. Compressor section Cooler section

I need the solution for this problem pls. Thanks a lot.

Q2) A piston/cylinder has ammonia at 1600 kPa, 100°C with a volume of 0.1 m3. The piston is loaded with a linear spring and outside ambient is at 20 °C. The ammonia now cools down to 10 °C at which point it has a quality of 10%. Find the work, the heat transfer and the total entropy generation in the process. NH₂

(b) Steam at 140 bar has an enthalpy of 3001.9 kJ/kg, find the temperature, specific volume and the internal energy.