The important factor is the kinetic energy of the particles. In essence, the heat from the hot food provides the energy needed for the smell particles to travel a greater distance. Other Questions with Answers Related to the Same Chapters Matter In Surroundings
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close. Hot food smells spread faster than cold food. This is because the heat from the hot food makes the smell particles move quicker. It’s like comparing a fast runner to a
Cotton absorbs water and sweat from your body, and exposes it to the air, which makes it evaporate faster. This evaporation cools your body.
Cooling sensation we feel when we put substances like acetone, petrol, or perfume on our palm is due to the rapid evaporation of these substances, which absorbs heat from our skin and makes it feel cold.
Why does our palm feel cold when we put some acetone or petrol or perfume on it? Read More »
the combination of increased surface area and greater surface-to-volume ratio in the saucer allows hot tea or milk to cool down faster, enabling us to sip it more quickly without burning our mouths.
Why are we able to sip hot tea or milk faster from a saucer rather than a cup? Read More »
Compressionâ–º Coolingâ–º Expansionâ–º Further Coolingâ–º Collection
Heat that goes towards changing state, not temperature, is called latent heat. It’s like the water is using that heat to overcome the forces holding the ice cubes together, not to get itself more excited (hotter).
For any substance, why does the temperature remain constant during the change of state? Read More »
250°C: At this temperature, water will be in a gaseous state. At 100°C, water is at its boiling point. This means it exists in a mixture of both liquid and gas.
What is the physical state of water at: (a). 250°C (b). 100°C ? Read More »
300 Kelvin is equivalent to approximately 26.85 degrees Celsius. 573 Kelvin is equal to approximately 300 degrees Celsius.
Convert the following temperature to Celsius scale: (a). 300 K (b). 573 K Read More »
Ice floats on water because it is less dense than liquid water. This is due to the unique structure of water molecules and how they arrange themselves in solid form.
A gas fills completely the vessel in which it is kept: Gas particles have high kinetic energy and move randomly, spreading out to fill all available space.
Rigidity, compressibility, fluidity, and more! This description explores key properties of matter (shape, density, kinetic energy) with definitions, comparisons, and examples. Learn how solids, liquids, and gases behave!
