Because during cooking foods support many chemical and physical changes; the released chemical compounds after heating has different odors. These odor particles travel through the air and allow people to smell the cooking food from various distances.
The reason you can smell food from upstairs is because the food smell particles spread out and mix with the air. Also air and other gases fill in any shape what so ever. So when the food smell particles mix with air they will find tiny gaps and fill them slowly.
The scent of the ingredients in the food circulates around with the air.
You can smell food from a distance because the scent diffuses into the air.
smell can not be measured but can be observed
Its like water. Can you smell water? NO! So the cold things have ice on them, and the ice is made of water. You can't smell it. You can't smell boiling water either, so that argument doesn't hold.Other things smell when its cold like petrol (gasoline).AnswerWhen things are heated the molecules vibrate more rapidly, some molecules may gain enough energy the become a gas, but not all of them or your chocolate bar would evaporate! The gas molecules can diffuse through the air and up your nose where they can be sensed by chemical receptors. This makes cooking food that is very hot smell great.If the object is cold the molecules will have less energy and fewer will become gaseous meaning fewer molecules reach your chemical receptors so the object will be harder to smell. Therefore you can't smell frozen foods very well at all.Some molecules evaporate very easily such as petrol molecules, this means that you can smell them even though it is cold. Many molecules we just arn't very good at sensing, like water and oxygen, I guess we just don't have the correct chemical receptors. Imagine if we could smell how humid the day was for example, it would be a pain really and take a lot of brain power.
because your feet sweat and the sweat sits there and releases a gas to make the smell. Thank you for using Answers.com
The smell began to waft into the room.He used the magazine to waft the stench away from him.A waft of cold air suddenly invaded the building.
Yes it does. Every thing have a smell but it's not that everyone can smell it. Try smelling it!
Because the air (gas) has a low density, it travels upwards.
you can smell it
All smell are just molecules. The gradually desperse into small particles that your nose adjusts or you just can smell it anymore.
So the house does not smell of the cooked food after your done cooking.
I think so. If they smell dinner cooking they would walk faster to get it.
Her voice was distinctly different from the others in the room.
The smell in the kitchen or maybe the rattling of the pot lid.
"If I were to make a blog about cooking I would make it something catchy like: Something's Sizzling, or I smell something good in the kitchen, my friend suggests Cooking for Two."
After the fire was put out, the firefighters searched the building for any residual smoke to ensure it was completely extinguished.
An extractor fan is used when there is too much vapour and smell in the kitchen while cooking. You switch it on and the fan leads those bad smells outside or eliminates them through a filter.
old pipes in the sink or tub upstairs
When cooking or cooked, they smell like sewage.