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forsale [732]
3 years ago
5

Two samples of gold that have different temperatures are placed in contact with one another. Heat will flow spontaneously from a

sample of gold at 60°C to a sample of gold that has a temperature of
(1) 50°C (3) 70°C
(2) 60°C (4) 80°C
Chemistry
2 answers:
galina1969 [7]3 years ago
7 0
It is 50. This is because heat goes from higher temperatures to lower and nothing else in the options is lower.
DochEvi [55]3 years ago
4 0

Answer:

50^{o} C

Explanation:

The second law f thermodynamics tells us that naturally, heat will flow from a hotter object to a colder object until the bodies are at the same temperature. So heat will spontaneously flow from gold at 60 degrees Celsius to a body that is colder than it which on the list of possible answers.

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A) Atom is generally charge less,<br>why? ​
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Explanation:

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  B

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A closed system initially containing 1×10^-3 hydrogen 2×10^-3M iodine at 448 degree Celsius and is allowed to reach equilibrium.
GaryK [48]

Answer:

Kc = 50.5

Explanation:

We determine the reaction:

H₂  +  I₂   ⇄   2HI

Initially we have 0.001 molesof H₂

and 0.002 moles of I₂

If we have produced 0.00187 moles of HI in the equilibrium we have to know, how many moles of I₂ and H₂, have reacted.

           H₂     +      I₂      ⇄   2HI

In:     0.001       0.002           -

R:       x                 x                2x

Eq:  0.001-x    0.002-x      0.00187  

x = 0.00187/2 = 9.35×10⁻⁴ moles that have reacted

So in the equilibrium we have:

0.001 - 9.35×10⁻⁴ = 6.5×10⁻⁵  moles of H₂

0.002 - 9.35×10⁻⁴ = 1.065×10⁻³ moles of I₂

Expression for Kc is =  (HI)² / (H₂) . (I₂)

0.00187 ² /  6.5×10⁻⁵ . 1.065×10⁻³ = 50.5

5 0
3 years ago
Surrounding ions with water molecules is known as
Stells [14]

Answer:

Hydration  

Explanation:

In water, ions are surrounded by a sphere of water molecules called a hydration shell. The process of forming this shell is called hydration.

3 0
2 years ago
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