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8090 [49]
3 years ago
15

As the block slides down the ramp, what type of energy conversion is occurring?

Chemistry
1 answer:
Licemer1 [7]3 years ago
5 0
As a block slides down a ramp the potential energy is transformed into kinetic energy.

If there is not friction between the ramp and the block that is the only conversion occurring.

If there is friction some potential energy will be converted into thermal energy (heat) and sound.

Also, if there is any kind of interaction between the block and other object some other kind of energies can be otained.

That is all what can be said without a figure that shows other specific condition that implies another conversion of energy.


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Electron A falls from energy level X to energy level Y and releases blue light. Electron B falls from energy level Y to energy l
MrMuchimi

Answer: Transition from X to Y will have greater energy difference.

Explanation: For studying the energy difference, we require Planck's equation.

                                E=\frac{hc}{\lambda}

where, h = Planck's Constant

c = Speed of light

E = Energy

\lambda = Wavelength of particle

From the equation, it is visible that the energy and wavelength follow inverse relation which means that with low wavelength value, energy will be the highest and vice-versa.

As electron A falls from X-energy level to Y-energy level, it releases blue light which has low wavelength value (around 470 nm) which means that it has high energy.

Similarly, Electron B releases red light when it falls from Y-energy level to Z-energy level, which has high wavelength value (around 700 nm), giving it a low energy value.

Energy Difference between X-energy level and Y-energy level will be more.


5 0
3 years ago
he heat of fusion of tetrahydrofuran is . Calculate the change in entropy when of tetrahydrofuran melts at . Be sure your answer
lana [24]

Answer:

\Delta S=1.8x10^{-3}\frac{kJ}{K}=1.8\frac{J}{K}

Explanation:

Hello.

In this case, given the heat of fusion of THF to be 8.5 kJ/mol and freezing at -108.5 °C, for the required mass of 5.9 g, we can compute the entropy as:

\Delta S=\frac{n*\Delta H}{T}

Whereas n accounts for the moles which are computed below:

n=5.9g*\frac{1mol}{72g} =0.082mol

Thus, the entropy turns out:

\Delta S=\frac{0.0819mol*8.5 kJ/mol}{(-108.5+273.15)K}\\\\\Delta S=1.8x10^{-3}\frac{kJ}{K}=1.8\frac{J}{K}

Best regards.

3 0
3 years ago
(Science. I choose Chemistry for no good reason)
Rina8888 [55]
I believe that the chemical formula for an acid often begins with H, which means C is your answer.
6 0
3 years ago
A school has 8 period in a day such the each periods is of 35 minutes.lf the number of period is reduced to 7, then how long wou
scZoUnD [109]

Answer:

45 minutes about

Explanation:

i think because i have 7 periods with 45 minutes each

5 0
3 years ago
during a bread making process glucose is converted to ethanol and carbon dioxide causing the bread dough to rise by itself this
yaroslaw [1]

Answer:

Zymase is acting as a catalyst

Explanation:

Zymase is an enzyme that is naturally produced in yeast. Enzymes are biological catalysts that speed up the rates of reactions in living things.

Zymase catalyses the breakdown of glucose into ethanol and carbon dioxide, which causes the bread to rise.

Zymase speeds up this reaction, but is not physically changed itself. Therefore, it is a catalyst.

Actually, zymase represents a collection of enzymes in yeast, not just one!

5 0
3 years ago
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