0
Why does a porous canvas bag with water cool when slung on the outside of a fast-moving car in hot weather?
Evaporation is a cooling process. The water molecules that escape the surface of the bag were those that were fast moving. If you remove the fast moving molecules, the ones left behind are slower and, thereby, colder. The faster you remove them the colder the aggregate becomes. Hanging the bag on the front of a fast moving car is a good way to remove them quickly.
What else can I help you with?
Is glass permeable?
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
Is mirror surface non-porous?
Yes, a mirror surface is non-porous because it is typically made of glass or metal that does not have any open pores or holes through which liquid or air can pass. This non-porous nature is what allows mirrors to reflect light effectively.
Which term denotes the physical force that pushes water through a saturated porous material?
The term you are looking for is "hydraulic gradient." It is the driving force that pushes water through a saturated porous material.
What types of wood floats?
Generally, light and porous woods like cedar, balsa, and cork are known to float in water due to their low density. Hardwoods such as oak or maple tend to sink because they are denser and less porous.
What is the process that moves water through a narrow porous space?
Capillary action is the process that moves water through a narrow porous space. This action occurs due to the adhesive and cohesive properties of water, which allow it to climb against gravity and flow through narrow spaces like in a plant's roots or in paper towels.
Is drywall porous material?
YES, drywall is very porous material. If left outside, even covered, in damp conditions it will gain nearly 50 % of it's weight in moisture.
What is a permeable rock and why does it weather easily?
Porous rocks weather more easily for different reasons:Many porous rocks are made from softer materials, thus being more easily weatheredPorous rocks, by definition, tend to have lots of spaces in them where, on a microscopic or even macroscopic level, areas of the rock are not connected on all sides to other rock. As a result, there is less resistance to fracture or other separationsWater can infiltrate porous rocks and dissolve from the inside as well as the outside - even if only very slowlyBecause water can infiltrate porous rocks, they can be fractured from within when the water freezes
Is a concrete non porous?
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
Is concrete non porous?
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
To glue a stainless steel outdoor garden sculpture to a black marble base - What can you use to permanently bond them and that can withstand being in outside weather?
An epoxy resin two part glue may be suitable.There may be issues with marble that is outside in a climate where frosts occur. Marble is porous and any moisture absorbed will expand upon freezing, possibly damaging the marble.
Is silk porous or nonporous?
Silk is porous -- it absorbs liquids.
Can you use interior paint outside?
Interior paint is more porous and less resistant to the elements than a paint actually devised to use outside. A flat paint finish or a satin paint finish is better outside, a gloss paint finish can also be used but only sparingly, as it reflects light and may highlight more flaws.
Is metal porous?
Metal is not porous. Many other elements are porous though and when metal combines with them it can potentially become porous.
Does metamorphism make the rock more porous or less porous?
more porous
What a good sentence for porous?
The story proved to be quite porous. Lava is a porous rock.
Is stainless steel porous?
Stainless steel is not inherently porous, as it is a non-porous material.
Is pumice porous or non porous?
All natural store is porous and needs to be sealed. Travertine is the most porous over marble and granite
