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sesenic [268]
2 years ago
15

Which of the following choices contains the most thermal energy? a penny that is 20 degrees Celsius ( oC) an atom of aluminum th

at is 20 degrees Celsius ( oC) a 50 milliliter (ml) glass of water at 20 degrees Celsius ( oC) a 900 milliliter (ml) pitcher of orange juice at 20 degrees Celsius ( oC)
Chemistry
1 answer:
jek_recluse [69]2 years ago
6 0

Answer: a 900 milliliter (ml) pitcher of orange juice at 20 degrees Celsius ( oC)

Explanation:

Thermal energy is the energy possessed by an object by virtue of its temperature. The hotter the substance, the more its molecules vibrate, and therefore the higher its thermal energy.

Thermal energy refers to the sum of kinetic, potential, vibrational ,electronic and rotational energies of the object.

For bodies at same temperature, the body with more molecules will have more thermal energy due to more collisions.

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How does conduction happen?
pashok25 [27]

Answer:

Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. ... The fire's heat causes molecules in the pan to vibrate faster, making it hotter. These vibrating molecules collide with their neighboring molecules, making them also vibrate faster.

Explanation:

8 0
2 years ago
Which option correctly shows the concentration of H3O+ ions in pure water?(1 point)
loris [4]

Answer:

1.0x10^-7 mol/L

8 0
2 years ago
Potassium chlorate decomposes to produce potassium chloride and oxygen gas according to the balanced equation below. If 1.00 g o
aniked [119]

Answer: The theoretical yield of potassium chloride is 0.596 grams and the % Yield of potassium chloride is 83.9%

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} KClO_3=\frac{1.00g}{122.5g/mol}=0.008moles  

2KClO_3\rightarrow 2KCl+3O_2  

According to stoichiometry :

2 moles of KClO_3 produce= 2 moles of KCl

Thus 0.008 moles of KClO_3 will produce=\frac{2}{2}\times 0.008=0.008moles  of KCl

Theoretical yield of KCl=moles\times {\text {Molar mass}}=0.008moles\times 74.5g/mol=0.596g

% yield = \frac{\text {Actual yield}}{\text {Theoretical yield}}\times 100=\frac{0.500g}{0.596g}\times 100\%=83.9\%

The theoretical yield of potassium chloride is 0.596 grams and the % Yield of potassium chloride is 83.9%

4 0
3 years ago
Which is easier to observe, physical or chemical properties? why?
Ilia_Sergeevich [38]
Physical properties are easier to observe than chemical properties as the include characteristics such as color and texture.
6 0
3 years ago
a gas sample has a volume of 300 L when under a pressure of 55.0kPa. What is the new volume if the pressure is increased to 165
vaieri [72.5K]
I dont really know maybe you have to add and multiply some of them to get the answer

5 0
3 years ago
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