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tensa zangetsu [6.8K]
4 years ago
13

Why has JET not been able to get fusion reactions to work?

Chemistry
1 answer:
Dmitrij [34]4 years ago
7 0

Explanation:

on earth it is very difficult to start nuclear fusion reactions that release more energy than in needed to start the reaction.

You might be interested in
Calculate Ho298 for the process Zn + S + 2O2 ? ZnSO4 from the following information:
Yuri [45]

Answer:  \Delta H^0=-982.8kJ.

Explanation:

According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.

According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.

Zn+S\rightarrow ZnS    \Delta H^0_1=-206.0kJ   (1)

ZnS+2O_2\rightarrow ZnSO_4 \Delta H^0_2=-776.8kJ  (2)

The final reaction is:

Zn+S+2O_2\rightarrow ZnSO_4  \Delta H^0_3=?   (3)

By adding (1) and (2)

\Delta H^0_3=\Delta H^0_1+\Delta H^0_2=-206.0kJ+(-776.8kJ)=-982.8kJ

Hence \Delta H^0=-982.8kJ.

6 0
4 years ago
When mixing eggs flour and sugar what type of change happens?
Jet001 [13]
Chemical change since when you mix eggs flour and sugar together, it isn't egg, sugar or flour anymore

3 0
3 years ago
3. Classify the following plants along with two main characteristics: al Cycus b) Bamboo c) Lemna d) Paddy a) Sugarcane f) Pinus
madreJ [45]

Answer:

A. cycas

1. it is thick and scaly

2. it grow relatively slowly and have a large, terminal rosette of leaves.

B. bamboo

1. it is very durable

2. it is both flexible and elastic

C. lemna

1. it grows as simple free-floating thalli on or just beneath the water surface

2. it are small, not exceeding 5 mm in length

D. paddy

1. it is variety purity

2. it degree of purity

E. sugarcane

1. it is bear long sword-shaped leaves

2. it's stalks are composed of many segments, and in each joint there is a bud

4 0
3 years ago
What is the wavelength of spectral line resulted from the electron transition from n=3 to n=2 in a hydrogen atom.
MakcuM [25]

Answer:

\lambda=6.56x10^{-7}m

Explanation:

Hello there!

In this case, it possible to use the Rydberg equation in order to calculate the wavelength for this transition from n=3 to n=2 as shown below:

\frac{1}{\lambda} =R_H(\frac{1}{n_f^2}-\frac{1}{n_i^2} )

Thus, we plug in the corresponding energy levels and the Rydberg constant to obtain:

\frac{1}{\lambda} =10973731.6m^{-1}(\frac{1}{2^2}-\frac{1}{3^2} )\\\\\frac{1}{\lambda} =1524129.4m^{-1}\\\\\lambda=\frac{1}{1524129.4m^{-1}} \\\\\lambda=6.56x10^{-7}m

Best regards!

5 0
4 years ago
How many moles are in 29.8grams of CaCl2?
lora16 [44]

Answer:

110.984  ?

i apologize if i'm wrong, you can report it if im wrong

have a good day/ night

Explanation:

4 0
3 years ago
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