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3 years ago

What are the advantages and disadvantages of fission?

Chemistry

1 answer:

viktelen [127]3 years ago

5 0

Advantages of Nuclear Fission

Nuclear fission provides cheapest energy . Almost 10% of electricity used in the world is obtained from the fission reaction

It offers a low-emission energy solution since there is no carbon dioxide gas emitted during the nuclear fission reaction

A well controlled and maintained nuclear reactor can produce energy for 36 to 40 months so works for .

It is a reliable source of energy as energy is obtained from uranium which is available is plenty.

It provides very concentrations of energy as it can provide large amount of energy from small amount of fuel.

The reaction gives less annual mortality rate of any energy resource with 90 deaths per trillion kilowatt hours

Disadvantages of Nuclear Fission

It is dangerous and also explosive.

It creates harmful and radioactive waste products.

It is not a renewable energy resource like solar and wind energy

It can develop long-term health issues for people exposed to then radioactive waves.

It involves high cost in installation of the reactors.

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2 years ago

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2 years ago

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according to the kinetic molecular theory the pressure exerted by a sample of gas at constats volume doubles when the absolute t

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Answer: gas molecules will hit the container walls more frequently and with greater force

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According to the postulates of kinetic molecular theory:

1. The pressure exerted by a gas in a container results from collisions between the gas molecules and the container walls.

2. The average kinetic energy of the gas molecules is proportional to the kelvin temperature of the gas.

When the temperature is increased, so the average kinetic energy and the rms speed also increase. This means that the gas molecules will hit the container walls more frequently and with greater force because they are all moving faster. This increase the pressure.

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3 years ago

A 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. the total heat capacity of the calorimeter plus water w

Sladkaya [172]

Answer: Th enthalpy of combustion for the given reaction is 594.244 kJ/mol

Explanation: Enthalpy of combustion is defined as the decomposition of a substance in the presence of oxygen gas.

W are given a chemical reaction:

$Mg(s)+\frac{1}{2}O_2(g)\rightarrow MgO(s)$

$c=5760J/^oC$

$\Delta T=0.570^oC$

To calculate the enthalpy change, we use the formula:

$\Delta H=c\Delta T\\\\\Delta H=5760J/^oC\times 0.570^oC=3283.2J$

This is the amount of energy released when 0.1326 grams of sample was burned.

So, energy released when 1 gram of sample was burned is = $\frac{3283.2J}{0.1326g}=24760.181J/g$

Energy 1 mole of magnesium is being combusted, so to calculate the energy released when 1 mole of magnesium ( that is 24 g/mol of magnesium) is being combusted will be:

$\Delta H=24760.181J/g\times 24g/mol\\\\\Delta H=594244.3J/mol\\\\\Delta H=594.244kJ/mol$

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3 years ago