How can the speed of solvent molecules be slowed down? a. by increasing the temperature b. by increasing the surface area of the solute c. by increasing the pressure d. by decreasing the temperature e. by decreasing the surface area of the solute

Explanation:

If by speed ,you mean the rate at which they collide with each other then yes the answer would be

By decreasing the temperature

Since we already know thattemperature is the average kinetic energy of the molecules and increasing temperature will increase the motion of the solvent molecules and an decrease in temperature will decrease in the motion of solvent molecules

h

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.