Answer:
- <u>1. Since the temperature of your body is higher than the temperature of the air and of the water, heat will flow from your body to the air and pool.</u>
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- <u>2. The pool feels cooler than air because the water can absorb heat energy faster than the air, due to liquids are better conductors than gases.</u>
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Explanation:
Heat always flows from warmer substances to colder ones.
The normal body temperature is 98ºF. Therefore, the heat will flow from your body to the air and pool, which are at a lower temperature of 80ºF. In both cases, you will lose thermal energy and the external parts of your body will cool down.
The difference between both cases is in the heat conduction capacity of both air and water.
Liquids (and solids) are better <em>thermal conductors </em>than gases because the conduction of heat occurs as result of the direct contact between the particles of matter: the atoms or molecules in hot matter vibrate faster than their neighbors and transmit them kinetic energy by direct contact.
Therefore, the liquid water in the swimming pool, at the same temperature than the air, will be able to absorb more heat in the same time from the body.
In conclusion, the body will cool down faster in water than in air which is why the pool feels cooler than air.
Volume (in mL) is 1.61 ml would you need to dilute 35.0 mL of a 1.30 M solution of KBr to make a 0.0600 M solution of KBr
Dilute is to make a liquid weaker by mixing in something else
The volume or concentration of the concentrated or dilute solution can be determined by using the equation:
M₁ V₁ = M₂ V₂
Here given data is
M₁ = 1.30 M
M₂ = 0.0600 M
V₂ = 35.0 mL
V₁ =?
Then substitute this value
M₁ V₁ = M₂ V₂
1.30 M×V₁ = 0.0600 M×35.0 mL
V₁ = 1.61 ml
Know more about volume
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<span>direction, speed, and distance of charged particle</span>
An electrolytic cell where electrolysis occurs which consists of an electrolyte where current from an outside source is passed through in order to produce an electrochemical cell.
Because chlorine has the highest electronegativity among the four, it has the greatest tendency to attract electrons in a chemical bond.
Therefore, (2) chlorine is the best answer.
Hope this helps~