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2 years ago

12

How much heat does your body lose when 6.35 g of sweat evaporates from your skin at 25 ∘C ? (Assume that the sweat is only water

.) The heat of vaporization of water at 25 ∘C is 44.0 kJ/mol .

1 answer:

ziro4ka [17]2 years ago

5 0

Answer:

15.52 kj

Explanation:

H2 O mole wt ~ 18 gm

6.35 gm is 6.35 gm /18 gm/mole = .353 moles of H2O

.353 moles * 44 kj/mole =

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Law of Universal Gravitation (what factors affect gravity and how?)

olya-2409 [2.1K]

Explanation:

Hey there!

According to the law of gravitation, the factors that affects the gravity are:

Mass of the heavenly bodies.
Distance from the centre of the body to next body.

Mass of heavenly bodies:<em>The </em><em>ma</em><em>s</em><em>s </em><em>of </em><em>heavenly</em><em> bodies</em><em> </em><em>affect</em><em> </em><em>the </em><em>gravity</em><em>.</em><em> </em><em>We </em><em>know </em><em>that </em><em>gravity</em><em> is</em><em> </em><em>directly</em><em> proportional</em><em> to</em><em> the</em><em> </em><em>mass </em><em>of</em><em> heavenly</em><em> bodies</em><em>.</em><em> </em><em>so,</em><em> </em><em>when </em><em>the </em><em>mass </em><em>is </em><em>more </em><em>there </em><em>is </em><em>more </em><em>gravity </em><em>and </em><em>where</em><em> </em><em>there </em><em>is </em><em>less </em><em>mass </em><em>there </em><em>is </em><em>less </em><em>gravity</em><em>.</em>

Distance from the centre of the body to next body: <em>It </em><em>is</em><em> </em><em>one </em><em>of</em><em> the</em><em> </em><em>factor </em><em>to </em><em>influence</em><em> </em><em>gravity</em><em>.</em><em> </em><em>When </em><em>there </em><em>is</em><em> </em><em>more </em><em>distance</em><em> </em><em>there </em><em>is</em><em> </em><em>less </em><em>gravity</em><em> </em><em>and </em><em>where </em><em>there </em><em>is </em><em>distance</em><em> </em><em>more </em><em>force </em><em>is </em><em>there.</em><em> </em><em>Is </em><em>means </em><em>gravity</em><em> is</em><em> </em><em>inversely</em><em> proportional</em><em> to</em><em> </em><em>the </em><em>distance</em><em> </em><em>between </em><em>the </em><em>bodies</em><em>.</em>

<em><u>Hope </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0

2 years ago

Why is it correct to say seawater is a mixture.

ZanzabumX [31]

It's a mixture of H2O + a soluble substance like, salt.

7 0

3 years ago

Read 2 more answers

An atom emits a photon of wavelength 1.08 meters. What is the energy change occurring in the atom due to this emission? (Planck'

kati45 [8]

The answer is 1.84×10^(-25).

4 0

3 years ago

Read 2 more answers

The part of the flower responsible for producing pollen (sperm) is the _______.

IgorC [24]

Hello,

Here is your answer:

The proper answer to this question is option C "stigma".

Here is how:

The stigma is responsible for producing pollen in a plant.

Your answer is C.

If you need anymore help feel free to ask me!

Hope this helps!

7 0

3 years ago

Calculate the standard potential for the following galvanic cell: Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s) which has the overall bala

mylen [45]

Answer:

1.06 V

Explanation:

The standard reduction potentials are:

Ag^+/Ag E° = 0.7996 V

Ni^2+/Ni E° = -0.257 V

The half-cell and cell reactions for Ni | Ni^2+ || Ag^+ | Ag are

Ni → Ni^2+ + 2e- E° = 0.257 V

<u>2Ag^+ 2e- → 2Ag </u> <u>E° = 0.7996 V </u>

Ni + 2Ag^+ → Ni^2+ + 2Ag E° = 1.0566 V

To three significant figures, the standard potential for the cell is 1.06 V .

8 0

3 years ago