31. Argon forms clusters readily, the atoms in the cluster are bound together with Van der Waals forces . 32. In general one distinguishfes short and long range van der Waals forces ( London Dispersion Forces ). 33. On the other hand, the Casimir effect can be interpreted as the relativistic van der Waals force . 34. In gaseous dihydridocadmium, the molecules form groups ( trimers ), being connected by van der Waals forces . 35. Alkanes experience intermolecular van der Waals forces . 36. Other forces are van der Waals force and capillary force for fine and wet particles system respectively. 37. Van der Waals forces , hydrogen bonds ).38. The vibrational bond acted differently than van der Waals forces reactions because the energy was balanced differently. 39. The van der Waals force is roughly a ten-thousandth of the force exerted by an everyday tape. 40. With viscoelasticity you get about a hundred times more than from the van der Waals force alone,