20
25
50
75
Correct answer is B
No explanation has been provided for this answer.
X(g) → X\(^-\)(g). The type of energy involved in the above transformation is?
ionization energy
sublimation energy
lattice energy
electron affinity
Correct answer is D
No explanation has been provided for this answer.
Which of the following terms indicates the number of bonds that can be formed by an atom?
Oxidation number
Valence
Atomic number
Electronegativity
Correct answer is B
No explanation has been provided for this answer.
P
Q
R
S
Correct answer is D
No explanation has been provided for this answer.
collisions are perfectly elastic
forces of repulsion exist
forces of repulsion are in equilibrium
collision are inelastic
Correct answer is A
Collisions between gas particles or collisions with the walls of the container are perfectly elastic. None of the energy of a gas particle is lost when it collides with another particle or with the walls of the container.