Based purely on the knowledge of chemistry, rust forms faster in the heat. Rust is the oxidation of iron and this reaction will occur at a faster rate at a higher temperature as the molecules are provided with more kinetic energy. However, the rate of 'rusting' also depends on humidity etc.
# Most pennies do not rust because they are not made of ferrous metal. They're either copper or copper-plated zinc. # However U.S. cents struck in 1943 were made of zinc-coated steel. When the zinc wore off, the coins did rust. # Pennies wont rust mostly because they corrode and oxidize. # They tend to turn green once oxidized or the penny looks vary dirty.
Salt water is a more conductive solution than tap water, which accelerates the electrochemical process of iron oxidation (rusting). The chloride ions in salt water can also react with the iron to form more rust at a faster rate compared to tap water.
saltwater
20 gauge galvannealed steel will rust faster in salt water compared to fresh water. The presence of salt in salt water accelerates the corrosion process of the metal, leading to faster rust formation.
An iron material can easily rust in the presence of air and water. For example if an iron nail is half dipped in water and the rest of the nail is open in the presence of air then the nail can easily rust.
warm water will rust metal faster
When rust is exposed to hot water, it can accelerate the corrosion process. The heat can speed up the chemical reactions that cause rust to form, leading to faster deterioration of the metal.
A nickel would rust faster in hot water compared to cold water because the higher temperature accelerates the chemical reactions involved in the rusting process. Warm environments generally promote faster oxidation and corrosion of metals.
Keep it away from muriatic acid (hydrochloric acid). The acid fumes form muriatic can cause metals to rust faster. My dad has a business that uses muriatic acid for cleaning. The smoke from it, can develop rust on metals immediately on the following day. Heat produced by laptop makes rusting even faster... You don't need to apply the acid to form rust. Using the laptop in a room with acid fumes is enough..
Fe2O3 Iron Oxide time is varying but if the metal is hotter rust occurs faster.
Rust generally occurs faster in hot and humid conditions because higher temperatures accelerate the chemical reactions that lead to rust formation. Cold temperatures can slow down the process, but when moisture is present, rusting can still occur over time.
Sugar reaches the copper and they form a physical change
# Most pennies do not rust because they are not made of ferrous metal. They're either copper or copper-plated zinc. # However U.S. cents struck in 1943 were made of zinc-coated steel. When the zinc wore off, the coins did rust. # Pennies wont rust mostly because they corrode and oxidize. # They tend to turn green once oxidized or the penny looks vary dirty.
It'll rust away faster, but (assuming they're made from the same alloy) won't start to rust faster.
Nails are made of iron, but pennies are copper and zinc. Iron reacts with oxygen to form rust, but copper on the outside of a penny does not.
coke will make it rust faster
One reason why car exhausts rust faster than the car body of the car is because they are often at a different temperature. The exhaust can be very hot and very cold so this creates a reaction rate which inturn makes the exhaust rust faster. hope that helps :)