Answer:
I haven't seen the video this is the hardest question for me to answer
Explanation:
False
Explanation:
All the time particles are not at rest. Because in different types of matter particles act differently.
In liquid, particles are connected to each other but not they move in different directions.
In solid, particles are tightly connected to each other, there are no gap between them.
Lastly, in case of gas, particles move randomly here and there.
So, we conclude that particles are not always in state of rest.
Hope it help you
Given question is:
Given a food with a relative humidity of 81%, what is the water activity in that food?
Explanation:
Water activity in food can be determined by using the below-shown formula:
Equilibrium is established between the vapor pressure of food and the surrounding air media.
Thus, for the given food the relative humidity is 81%.
hence, its water activity is
Answer:
Gas cannot melt.
Explanation:
Gas is a state of matter that can only be CONDENSED into a liquid. Solids only can melt.
