Which of the following statements is true? vapor pressure increases with temperature. dispersion forces are generally stronger than dipole-dipole forces. hydrogen bonds are chemical bonds. intermolecular forces hold the atoms in molecules together. none of the above are true.

“Vapor pressure increases with temperature” is the true statement from the given statements.

Option: A

Explanation:

Vapor pressure exerted in “thermodynamic equilibrium” with solid or liquid phase called “condensed phase” at a given temperature in packed or closed system. “Liquid particles” are arranged with more inter molecular space than solid and not as fixed as solid. Therefore when temperature is increased “kinetic energy” of the molecules also increases and thereby molecules transitioning into vapor also increases and in this way whole process is responsible for increase in “vapor pressure”.

100c is waters boiling point

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.