Therefore, the surface tension of ethanol increases more rapidly than that of methanol as shown in fig 3 (this trend is nonlinear).

415. Ethanol–Mercury. 20 °C. 389. Water–1,2-Dichloroethane.

Both viscosity and surface tension are dependent on the intermolecular forces between the molecules of the liquid. Honey, while being more viscous then water, doesn’t have higher surface tension.

Surface tension depends mainly upon the forces of attraction between the particles within the given liquid and also upon the gas, solid, or liquid in contact with it. An increase in temperature lowers the net force of attraction among molecules and hence decreases surface tension.

The Presence of ImpuritiesThe presence of impurities on the surface of, or dissolved in, a substance directly affects the surface tension of the liquid. The surface tension of water, for example, will increase when highly soluble impurities are added to it.

But if you touch the tent material with your finger, you break the surface tension and the rain will drip through. And, interestingly, cold water has more surface tension than hot water, which is why hot water cleans better than cold water.

Surfactants are compounds that lower the surface tension of a liquid like water, the interfacial tension between two liquids, or that between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, and dispersants.

It’s not a simple case of just getting rid of water’s surface tension. No surface tension/ energy would imply no intermolecular interactions and from there all non ideal models of the world fly out the window. There would be no phase transformations; everything would be an ideal gas, absent of molecular interactions.

Surfactants are capable to reduce surface tension drastically. Foam bubbles separating from bulk water is the shining example. Surfactants not only reduce surface tention, but induce disjoinng pressure between the surfaces, keeping either foam or a colloidal sytem stable.

Nope. The whole ‘breaking the surface tension’ is a myth. You would splat no matter how many bullets you had. Unless you have a grenade launcher capable of creating vast amounts of gas bubbles in water under you.

They likely will not survive. Up to about 450m, a falling human will most likely still be accelerating to terminal velocity. So your character would still be accelerating and suffer far more damage than the Mythbusters experiments showed. It’s not the surface tension that kills, it’s the change in acceleration.

The only reason you should ever throw rocks right before you are jumping into the water while cliff diving is to break the surface tension of the water. Lake water can easily become too calm to jump in, causing pain when you hit the water, while river and ocean water will usually not have as much surface tension.

Furthermore, a person who decides to go cliff diving should be feeling 100% confident in his or her abilities. Because of the high potential for injury, the World High Diving Federation advises against anyone diving from 65.5 feet (20 meters) or higher unless there are professional rescue scuba divers stationed.

If a sign is posted, someone’s probably been injured doing what you’re about to do. Don’t: Dive head-first until you’ve already gone feet-first or know for a fact that you won’t break your neck on a rock or the bottom.

You cannot cliff dive with a life jacket, and you will get hurt or possibly drown from the damage the life jacket will cause. Cliff diving is not something you should be doing if you still require a life jacket to swim safely.

Yes if you are really lucky. No if anything goes wrong. Unless you define cliff diving as hitting the water after leaving the cliff and don’t worry about what happens after.

three to five days

When wearing GRABNER buoyancy aids and life jackets DO NOT jump into the water from heights exceeding 2 metres. For heights up to 2 metres, wearing correct size and well fitting buoyancy aid is essential. Even at jumps from up to 2 metres, arms must be crossed and firmly pressed against the chest.

Stone states that jumping from 150 feet (46 metres) or higher on land, and 250 feet (76 metres) or more on water, is 95% to 98% fatal. 150 feet/46 metres, equates to roughly 10 to 15 stories in a building, depending on the height of one story. 250 feet is the height of the Golden Gate Bridge in San Francisco.

Jumping into the water

1. Keep elbows to the sides.
2. Cover nose and mouth with one hand.
3. Hold the life jacket downward and close to chest with the other hand.
4. Keep legs stretched out straight.
5. Never jump head first into water.
6. Jump with legs first.
7. Jump close to the life raft or other survival craft.

While it is technically possible, we do not recommend it because a life vest is designed to keep your head out of the water so that you do not drown. If you wear a life jacket, you will be constantly fighting against it while snorkeling.

Do you know how to swim? You need to be an expert swimmer before jumping into a cliff. Try to learn how you can swim comfortably on any water body to avoid drowning. If yes, then you can learn more about cliff jumping safely.

24. Lifejackets—Every passenger ship shall carry, in addition to the requirements specified in sub-rule (4) of rule 7, lifejackets for not less than 5 per cent of the total number of persons on board, stowed in conspicuous places on deck or at muster stations.