Grade 11 HSEB Result 2069 

Know more about Grade 11 HSEB Result 2070 Stats of the result : Under Regular Category Pass Percentage : 40.38 %   Pass Number : 114,019 Total Numbers : 282,359  Increase in pass percentage by 1.3 compared to the last year. Under partial category Passed Number: 51,525  Total Number: 158,689 students Pass percentage : 32.47%  Last […]

Boost up your English and career with Cambridge ESOL 

Get recent updates about Cambridge ESOL at our facebook page.For more info mail us at Cambridge ESOL (English for speakers of other Language) is set on mission to create a challenging and stimulating learning environment filled with differentiated activities and academic alternatives in all areas of the English Language to assist children, educators, and people […]

Advantages and Limitations of scientific management 

Advantages of scientific management :- To employees a.       Better utilization of resources through scientific techniques b.      Scientific selection and training of employees leads to better workforce which ensures increase in efficiency c.       Harmonious relationship between the workers and the management d.      Standardization of tools, materials, techniques , equipments for increasing efficiency e.      Reduction of production […]

Principles of scientific management 

1.    Replacing the rule of thumb with science:-it requires scientific study and analysis of each element of job in order to replace the old rule of thumb approach. Only through scientific investigation and standardization better way of work can be developed. Scientific selection of employees requires that decisions to make on facts rather than on […]

Taylor’s scientific management concept and his contributions 

Scientific management concept Scientific management concept is one of the principles of management and is also known as classical theory. This principle is propounded by Fredrick Winslow Taylor (F.W Taylor) – the father of management. He was born in USA in 1856. He joined Midvale steel company where he worked as a machine shop worker […]

Sign convention of heat and work 

1. Heat (q)    Case I:            When heat is absorbed by the system, q = +ve.     Case II:             When heat is released by the system, q = -ve. 2. Work (w)    Case I: (Work of Expansion)             When work is […]

Enthalpy (H) 

It is the sum of internal energy and product of pressure and volume. i.e.          H=E+PV…..(1) Here, E, P & V all are state function so H is also the state function. Being a state function it depends upon initial and final state and also its absolute value cannot be determined however change can be measured. […]

Internal energy (E) 

A compound itself has a definite amount of energy which includes kinetic energy, potential energy, energy of atom, constituting molecules and chemical bond energy. The sum of these different forms of energy (molecules) is called internal energy denoted by E. Internal energy is the state function so, it depends upon initial and final state and […]

First law of thermodynamics 

Ø  Total energy in the universe remains constant. Ø  Energy can neither be created nor be destroyed but can be transferred from one form to another. When Q amount of heat is supplied to the system, some part of it is used up to increase in its internal energy and remaining some part of it […]

Thermodynamic equilibrium 

The system is said to be in thermodynamic equilibrium if it attains thermal, mechanical, and chemical equilibrium at a time with surrounding. Thermal equilibrium means temperature remaining constant. Mechanical equilibrium means pressure remaining constant. Chemical equilibrium means composition/mass remaining constant.