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Plank’s Quantum Theory
In 1900, Max Planck proposed the quantum theory to explain the emission and absorption of radiations. Heated objects give off these radiations. According to his revolutionary hypothesis, energy travels in a discontinuous manner and is composed of a large number of tiny discrete units called quanta. Main postulates of Plank’s Quantum Theory: The main points…
X-Rays and Atomic Number
These rays, which are produced when rapidly moving electrons collide with the heavy metal anode in the discharge tube, is called X-rays. Explanation: Energy is released in the form of electromagnetic waves when the electrons are suddenly stopped. In the discharge tube, the electrons produced by a heated tungsten filament are accelerated by high voltage….
Molar Volume of a Gas Definition
The volume of one mole of an ideal gas at standard temperature and pressure is called molar volume of a gas and is equal to 22.414 dm3 at STP (Standard temperature & pressure) & 24 dm3 at RTP (Room temperature & pressure). Explanation: At standard temperature and pressure: 2 g of hydrogen (H2) = 1…
Thermochemistry Quiz Online
Thermochemistry concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Thermochemistry quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT, ECAT, NUST,…
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Chemistry basic and fundamentals concepts are essential to learning for every level in chemistry courses. Here, we have compiled many chemistry fundamental concepts quizes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and…
A Handbook of Spectroscopic Data eBook pdf
You Can Free Download A Handbook of Spectroscopic Data eBook pdf. Book Name: A Handbook of Spectroscopic Data Author Name: B.D. Mistry Total Pages: 247 Size: 7.6 mb This book is copyright content of his Author/publisher. This book is not hosted on our servers; we just share external download links available all over internet. We…
