Chemical Engineering in Daily Life – Question 15: Why is it easy to find toilets in China? Standard answer already available
Thread Content
This post was last edited by yjqin1 on 2015-8-22 22:10. Why is it easy to find toilets on Chinese streets and in buildings? Please don’t answer me by saying: wherever you want to use it as a toilet, that’s where it can be used as a toilet. In this regard, the Chinese have been degenerating over the past 30 years. The ordinary person’s answer is: follow the taste. Yes, why does it have a smell? Why are the toilets in places frequented by foreigners, such as airports, restaurants, parks, supermarkets, shops, office buildings, and laboratory buildings (with the exception of those with Chinese and Indian students), odorless? Because foreigners (from developed countries in Europe, America, and Japan) are taught from a young age how to urinate. A **sign of civilized progress is whether its citizens know how to urinate properly. I have never seen anyone constantly cleaning in the restrooms of foreign airports or fancy restaurants; they can’t afford to hire such people, nor is it necessary. My question is: why do Chinese toilets (excluding those in your homes) have an odor, and what a strong odor it is? Please answer from the perspective of chemistry and chemical engineering.
What does the teacher say about how children abroad are taught from a young age to urinate? I really don’t know what it specifically refers to – coming in a hurry and leaving in a hurry? ? Anyway, the smell in most of our station and roadside toilets is really strong~~~ From a chemical engineering perspective, it’s due to gas-liquid equilibrium, right? It can be explained by Henry’s law: at a constant temperature, the partial pressure of a volatile solute in the gas phase in a dilute solution is proportional to the mole fraction of that solute in the solution. Many times, people just leave right after using the toilet; there’s no concept of flushing, which is why the solution has a strong odor. Is that how it can be explained? ?
Why isn’t there a quantitative indication of whether there is a difference in the foot traffic between the two? In domestic airports and hotel restrooms, the people using them tend to be more polite, and there’s no unpleasant odor either; they are public places, after all, not my home. You can’t generalize all domestic public toilets with just one sentence. Is the ambient temperature the same? For the various factors that the original poster often mentions in quantitative terms, some data is also needed, such as ambient temperature, humidity, wind speed, and space size. One can’t determine the nature just for the sake of creating questions. It’s like every household needs to have a hygrometer to determine whether the relative humidity is comfortable.
This post was last edited by yjqin1 on 2015-8-18 at 11:18. It seems that they provoked a Patriot, who then threw some bricks at them. ““There’s no strange smell either,” it seems your sense of smell isn’t very good. How to check if your nose isn’t working properly: This season, wet a towel that is neither brand new nor old to the point of being worn out, wring it out, and then fold it up and place it in the bathroom. After 24 hours, unfold it and smell it to see if there is any odor. ““The quality of people using the restrooms in domestic airports and hotels is relatively higher,” but your so-called ‘higher’ standard is actually lower than theirs, which is what shows the gap. “Is the ambient temperature the same? ” I’ve heard that the moon in China is rounder than in other places, but I haven’t heard that the temperatures in China (Hainan Island, Heilongjiang) are higher than in other places. Make sure to urinate entirely into the toilet bowl (which has automatic facilities); even when the ambient temperature is 40 degrees, it won’t have any odor.
There’s nothing I can do; I wait while P people live in the country, unable to breathe the air from your toilets abroad. So the nose isn’t sensitive to the smell in public toilets in China, right?
Is it because the odor of toilet disinfectant is quite strong?
It’s not the main reason; not every toilet cleaner is that willing to do it.
It mainly comes down to cleaning and *getting used to it. The airport is constantly cleaned, and there is also ventilation
Standard answer: First of all, some people lack social manners and spill urine outside the pool while urinating. If not cleaned up in time, the urea in urine is hydrolyzed into ammonium carbonate under the action of urease; the pH value is around 8.7–9.3, while the pKa of ammonia is 9.2. As a result, ammonia evaporates to some extent, and carbon dioxide also evaporates, which further promotes the evaporation of ammonia. What does ammonia smell like? Foul smell. Of course, other components in urine also have an unpleasant smell on their own, and that smell becomes even worse once they are degraded. I hope that everyone who has read this post takes a small step forward. In a civilized society, people should not be in a relationship where they resort to eating each other’s excrement. Don’t be both a victim and a perpetrator. How do you say that: Do not do to others what you do not want done to yourself?