question_answer 51)

  Which of the following conditions favours the existence of a substance in the solid state? (a) High temperature     (b) Low temperature (c) High thermal energy              (d) Weak cohesive forces

Answer:

                (b) At low temperature existence of a substance in solid state is due to (a) slow molecular motion and (b) strong cohesive forces These two forces hold the constituent particles together thus causes existence of substance in solid state.