Define viscosity. Discuss the effect of temperature and pressure on viscosity.
The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water.[1]
Viscosity can be conceptualized as quantifying the internal frictional ________ ________ _________ __________ ___ _____ ___.
______ ______ ____ ________ _____ ____ ________.
______ ________ _____ ___ ____ _______ ___ ______ _______ ____ ______ __________.
_________ ____ __________ _________ ____ ________ ________ ________ ____ ____ ______.
_________ ___ _______ ______ __________ ___ _____ ________ _____.
_____ __________ __________ ________ _____.
_________ ________ _________ ____ ______ _______ ________ ____ ___ _______.
___ ____ ______ ____ ______ ___ ________ _________ ______ ___ ____ __________.
___ _______ ____ ______ _____ _____.
_______ ____ _____ _______ _____ __________ ___ _____ ______.
_______ _______ ______ _______ ________ _________.
_______ ________ __________ __________ ____.
_________ ___ ________ _____ _____ _______.
Get Full Answer on WhatsApp
Explain with examples, what are reversible and irreversible processes? Why can a reversible process be attained only in a hypothetical situation?
Four particles are to be distributed in 5 states. Calculate the number of ways in which this distribution can be done if the particles obey:
(i) M-B statistics and (ii) B-E statistics.
Derive an expression for efficiency of a Carnot engine using T-S diagram. A Carnot engine has an efficiency of 50 percent when its sink temperature is at 27 ºC. Calculate the change in source temperature for increasing its efficiency to 60 percent.
The number density of copper atoms is 8.491028 atoms m–3 . If each atom contributes one free electron for conduction, examine whether the electron gas is strongly degenerate at room temperature.
Calculate the temperature at which root mean square speed of gas molecules is double of its speed at 270C, pressure remaining constant.
A system is subjected to 5 types of processes depicted in the table below. Using the first law of thermodynamics, fill up the blank spaces. All the entries are made in joules.
| Process | Heat added δQ | Work done δW | Internal Energy Initial (Ui) | Internal Energy Final (Uf) | Change in internal energy (dU) |
| I | 45 | 0 | - | 45 | - |
| II | - | 30 | 30 | - | 30 |
| III | 65 | - | 0 | - | 45 |
| IV | -20 | - | 15 | 40 | - |
| V | 85 | 50 | 40 | - | - |
Define mean free path. Obtain its expression under zeroth order approximation.