1\" (10%) T either true or false rue or False? For each of the following stateme

Question

1" (10%) T either true or false rue or False? For each of the following statements, choose will a) Solids can withstand applied stress and shear stress. They b) Gases are always in good agreement with the ideal gas law. c) the source of viscosity is the intermolecular forces within the fluid. d) For a Newtoni e) For a moving solid wall, the fluid velocity in the region near the an fluid, the velocity profile is always linear wall must reduce to zero based on the no-slip condition. f) Pressure is single valued at a point and independent of direction g) The pressure will decrease as one moves upwards in both h) Kinematics is the description and study of motion of the flow and i) Streamlines, pathlines, and streaklines are identical in a steady i) The conservation of mass is often called the continuity equation incompressible and compressible fluids. the forces causing that motion. flow

Explanation / Answer

A) TRUE. a solid is formed of may molecules with less interatomic distances and whenever any external pressure is applied, the interatomic distance increases and a resisting force is developed. this force is the reason, why solids do not continuously deform. however, the liquids deform continuously.

B) FALSE. there are some assumptions which need to be followed for considering that they are ideal. the assumptions are: i) the volume of molecules of gas is negligibe compared to volume of gas, and

ii) the molecules do not exert any force on each other.

since this is never true, no gas is ideal, but some gases approximately follow these assumptions and they are said to be ideal. however, some gases exhibit this behaviour at special conditions like high temperature and low pressure.

C) TRUE. viscosity is the resistance to flow and in liquids, intermolecular forces are the one which are responsible for any resistance to flow.

D) FALSE. a fluid is said to be Newtonian if it follows Newton's law of viscosity, not because of its velocity profile. the velocity profile can be any function.

E), F), G), I), J)- TRUE.

H)-FALSE

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.