- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: When metals are heated to high temperature, their __________ increases in general.A atomic vibration
B creep strength
C yield stress & ultimate tensile strength
D toughness & stiffness
ANS:A - atomic vibration Atomic vibration refers to the rapid movement of atoms within a material around their equilibrium positions. Atoms in a solid material are constantly in motion due to thermal energy, even at temperatures well below their melting points. This thermal energy causes the atoms to oscillate or vibrate around their average positions in the crystal lattice. The amplitude of atomic vibrations increases with temperature, meaning that atoms vibrate more vigorously at higher temperatures. This increase in atomic vibration leads to expansion of the material, as the atoms move further away from each other on average. It also affects the material's mechanical properties, such as its strength, ductility, and conductivity. In summary, atomic vibration is a fundamental aspect of the behavior of materials at the atomic scale, and it plays a crucial role in determining their properties and behavior, especially at elevated temperatures. |


For help Students Orientation
Mcqs Questions
One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.