The answer is B. In the same direction as the force. Hope this helps :)
Answer:
- <u>1. The direction of heat flow is from your body to the pool or the air.</u>
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- <u>2. You feel the pool feels cooler because your body temperature drops faster in the water than in the air, due to the higher specific heat capacity of water.</u>
Explanation:
The normal temperature of the body is about 98ºF.
<em><u>1. Heat direction</u></em>
The thermal energy always flows from the warmer bodies to the colder bodies. Thus, the heat from your body flows toward the air or the water.
heat flow
98ºF 80ºF
warmer colder
<u><em>2. Why the pool feels cooler than the air?</em></u>
Water has a high specific heat capacity. That makes that, for a given amount of heat, it will change its temperature little.
When your body is in water the heat of your body will flow to the water and while the themperature of the water changes little the temperature of your body changes more, in the same time. This is, the rate of cooling of your body is higher than the rate of cooling of the water.
When you compare what happens in air, since air has a lower specific heat capacity, the rate of cooling of your body is lower than in water.
Then, the temperature of your body will decrease faster in the water than in the air, which is what you interpret (feel) as the pool is cooler than the air.
you find them on a periodic table
Explanation:
Hydrochloric acid does not consider as organic acid because of the absence of carbon in it.
hope it helps
Answer:
P₂ ≅ 100 atm (1 sig. fig. based on the given value of P₁ = 90 atm)
Explanation:
Given:
P₁ = 90 atm P₂ = ?
V₁ = 18 Liters(L) L₂ = 12 Liters(L)
=> decrease volume => increase pressure
=> volume ratio that will increase 90 atm is (18L/12L)
T₁ = 272 Kelvin(K) T₂ = 274 Kelvin(K)
=> increase temperature => increase pressure
=> temperature ratio that will increase 90 atm is (274K/272K)
n₁ = moles = constant n₂ = n₁ = constant
P₂ = 90 atm x (18L/12L) x (274K/272K) = 135.9926471 atm (calculator)
By rule of sig. figs., the final answer should be rounded to an accuracy equal to the 'measured' data value having the least number of sig. figs. This means P₂ ≅ 100 atm based on the given value of P₁ = 90 atm.