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jeyben [28]
3 years ago
8

How was Bohr’s atomic model different from Rutherford’s atomic model?

Chemistry
2 answers:
kherson [118]3 years ago
7 0

• Rutherford model suggested a new look into the nature of the nucleus, whereas the Bohr model suggested a new look into the mechanics of electrons.

• Bohr model utilized the existing knowledge of the nucleus derived from the Rutherford model.

• Rutherford model is based on the experiments Rutherford conducted in collaboration with Geiger and Marsden. The Bohr model is based on existing experimental results.


anzhelika [568]3 years ago
3 0

Answer:

C.  

Bohr’s model showed that electron orbits had distinct radii.

Explanation:

Bohr’s atomic model stated that electrons move in definite orbits. Electron shells are quantized. Electrons could move in the 1st, 2nd, 3rd shell etc. As electrons move in definite orbits they are at distinct distance from the nucleus. Thus each orbit has a distinct and different radii from the nucleus of the atom.

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Copper has a specific heat of 0.385 J/gºC.
Anna71 [15]

Answer:

The final temperature is 348.024°C.

Explanation:

Given data:

Specific heat of copper = 0.385 j/g.°C

Energy absorbed = 7.67 Kj (7.67×1000 = 7670 j)

Mass of copper = 62.0 g

Initial temperature T1 = 26.7°C

Final temperature T2 = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

Q = m.c. ΔT

7670 J = 62.0 g × 0.385  j/g °C ×( T2- 26.7 °C )

7670 J = 23.87 j.°C ×( T2- 26.7 °C )

7670 J / 23.87 j/°C = T2- 26.7 °C

T2- 26.7 °C = 321.324°C

T2 = 321.324°C + 26.7 °C

T2 = 348.024°C

The final temperature is 348.024°C.

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Answer:

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