1. An unknown gas at P1 = 95 psia and V1 = 4 ft³ undergoes a process to P2 = 15 psia %3D Btu and V2 = 16.56 ft³, during which the enthalpy decreases 83 Btu. Cy = 0.1573 lb R° Assuming 1 Ib, find: a) R b) CP cC ) Δυ

Q: Air fills a 2-m-diameter balloon at 20°C and 5 kPa gage. Additional air is forced into the balloon…

A: Given: Diameter of balloon, D1=2 m Temperature, T=20°C Pressure, P =5 kPa

Q: Steam at saturation pressure of 1.75 MPa has a quality of 78%. Find the following properties: a.) v…

A: Write the given data with suitable variables: P=1.75 MPax=78 %

Q: Q2): A polluted lake has an initial concentration of a bacteria of (1*107 part/m³), while the…

A: Answer: Given D.E is  dcdt+ 0.6c  = 0,   c (0)  = 10dcdt= -0.06c.f (c) = - 0.06c According to runge…

Q: Complete the following table of thermodynamic properties for water:

A:

Q: 4kg of air contained in a piston-cylinder apparatus at 1 bar. 40°c is compressed isothermally untill…

A: Given: Mass of air, m = 4 kg P1 = 1 bar T1 = 40°C or 313 K P2 = 7 bar Required: (a). W ( work done)…

Q: n a piston-cylinder arrangement, an initial temperature of 250 °C and 1.4 MPa pressure contains 4 kg…

A: The initial temperature is 250°C The pressure is 1.4 MPa The mass of vapor is mv=4 kg The final mass…

Q: 2. 1 mole of an ideal gas initially at 300K and 1 atm is heated and allowed to expand re- versibly…

A:

Q: A change of the system temperature, AT, can be: a) positive, b) negative, c) of any sign or zero.

A:

Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.