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abruzzese [7]
3 years ago
10

What is is granite made up of

Chemistry
1 answer:
Tema [17]3 years ago
4 0
It is stone that is found in the earth's crust
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Convert the boiling point of cyclopropane at standard pressure to kelvins
Olenka [21]
Celsius to Kelvin conversion formula

<span>The temperature T in Kelvin (K) is equal to the temperature T in degrees Celsius (°C) plus 273.15:</span>

T(K) <span>= T(°C) + 273.15</span>

 

So to convert the boiling point of cyclopropane from degrees Celsius to kelvin:

T(K) <span>= T(°C) + 273.15</span>

T(K) <span>= -33 + 273.15</span>

T(K) <span>= 240.15 K</span>

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3 years ago
What is the energy released in the fission reaction 1 0 n + 235 92 U → 131 53 I + 89 39 Y + 16 1 0 n 0 1 n + 92 235 U → 53 131 I
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<u>Answer:</u> The energy released in the given nuclear reaction is 94.99 MeV.

<u>Explanation:</u>

For the given nuclear reaction:

_{92}^{235}\textrm{U}+_0^1\textrm{n}\rightarrow _{53}^{131}\textrm{I}+_{39}^{89}\textrm{Y}+16_{0}^1\textrm{n}

We are given:

Mass of _{92}^{235}\textrm{U} = 235.043924 u

Mass of _{0}^{1}\textrm{n} = 1.008665 u

Mass of _{53}^{131}\textrm{I} = 130.9061246 u

Mass of _{39}^{89}\textrm{Y} = 88.9058483 u u

To calculate the mass defect, we use the equation:

\Delta m=\text{Mass of reactants}-\text{Mass of products}

Putting values in above equation, we get:

\Delta m=(m_U+m_{n})-(m_{I}+m_{Y}+16m_{n})\\\\\Delta m=(235.043924+1.008665)-(130.9061246+88.9058483+16(1.008665))=0.1019761u

To calculate the energy released, we use the equation:

E=\Delta mc^2\\E=(0.1019761u)\times c^2

E=(0.1019761u)\times (931.5MeV)  (Conversion factor:  1u=931.5MeV/c^2  )

E=94.99MeV

Hence, the energy released in the given nuclear reaction is 94.99 MeV.

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