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MakcuM [25]
3 years ago
6

Compare the advantages and disadvantages of using nuclear energy.

Chemistry
2 answers:
Brums [2.3K]3 years ago
8 0
Advantages<span> of </span>nuclear power- <span>The generation of electricity </span>through nuclear energy<span> reduces the amount of </span>energy generated from fossil fuels, <span>Less </span>use of fossil fuels means lowering greenhouse gas emissions. <span>Another </span>advantage<span> is the required amount of fuel: less fuel offers more </span><span>energy

Disadvantages- </span><span>Like fossil fuels, </span>nuclear<span> fuels are non-renewable </span>energy <span>resources. And if there is an accident, large amounts of radioactive material could be released into the environment. In addition, </span>nuclear<span> waste remains radioactive and is hazardous to health for thousands of years.</span>
RoseWind [281]3 years ago
8 0

Nuclear energy has some advantages over traditional methods of producing electricity. It has little impact on air quality and is more efficient than traditional methods of producing electricity. It does, however, use a nonrenewable resource, uranium. Uranium must be mined just like coal, which does have detrimental effects on the environment. Nuclear power plants also produce radioactive waste, which leads to difficulties in storage. Also, nuclear power plants use large amounts of water and can contribute to thermal pollution.

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A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets. The atoms consist of matter that has a nucleus in the centre. The difference between atoms is expressed by atomic numbers. ... There are also uncharged particles in the nucleus, called neutrons.

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3 years ago
A civil engineering student is considering buying an electric car. However, the conscious student wants to make sure her carbon
svetlana [45]

Answer:

\text{An gasoline-powered vehicle has }\\\boxed{\text{five times the carbon footprint}}\text{ of an electric vehicle.}

Explanation:

1. Miles travelled in an average month  

\text{Miles} = \text{1 mo} \times \dfrac{\text{52 wk}}{\text{12 mo}} \times \dfrac{\text{5 da}}{\text{1 wk}} \times \dfrac{\text{16 mi}}{\text{1 da}} = \text{347 mi}

2. Using a gasoline powered vehicle  

(a) Moles of heptane used  

n = \text{347 mi} \times \dfrac{\text{1 gal}}{\text{36.5 mi}}\times \dfrac{\text{3.785 L}}{\text{1 gal}} \times \dfrac{\text{679.5 g}}{\text{1L}} \times \dfrac{ \text{1 mol}}{\text{100.20 g}}= \text{244 mol}

(b) Equation for combustion  

C₇H₁₆ + O₂ ⟶ 7CO₂ + 8H₂O  

(c) Moles of CO₂ formed  

n = \text{244 mol heptane} \times \dfrac{\text{7 mol CO$_{2}$}}{\text{1 mol heptane}} = \text{1710 mol CO$_{2}$}

(d) Volume of CO₂ formed  

At 20 °C and 1 atm, the molar volume of a gas is 24.0 L.  

V = \text{1710 mol } \times \dfrac{\text{24.0 L}}{\text{1 mol}} \times \dfrac{\text{1 gal}}{\text{3.785 L}} = \textbf{10 800 gal}

3. Using an electric vehicle  

(a) Theoretical energy used  

\text{Theor. Energy} = \text{347 mi} \times \dfrac{\text{1 kWh}}{\text{5.2 mi}} = \text{66.7 kWh theor.}

(b) Actual energy used  

The power station is only 85 % efficient.  

\text{Actual energy used} = \text{66.7 kWh theor.} \times \dfrac{\text{100 kWh actual}}{\text{ 85 kWh theor.}}\times \dfrac{\text{3600 kJ}}{\text{1 kWh}}\\\\ = 2.82\times 10^{5} \text{ kJ}\

(c) Combustion of CH₄

CH₄ + 2O₂ ⟶ CO₂ +2 H₂O

(d) Equivalent volume of CO₂

The heat of combustion of methane is -802.3 kJ·mol⁻¹  

V= 2.82\times 10^{5}\text{ kJ} \times \dfrac{\text{1 mol methane}}{\text{802.3 kJ}} \times \dfrac{\text{1 mol CO$_{2}$} }{\text{1 mol methane}} \times \dfrac{ \text{24.0 L}}{ \text{1 mol CO$_{2}$}}\\\\ \times \dfrac{\text{1 gal}}{\text{3.875 L}} = \textbf{2180 gal}

4. Comparison  

\dfrac{V_{\text{gasoline}}}{V_{\text{electric}}} = \dfrac{10800}{2180} = 5.0\\\\ \text{An gasoline-powered vehicle has }\\ \boxed{\textbf{ five times the carbon footprint}}\text{ of an electric vehicle.}

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LUCKY_DIMON [66]

Answer:

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(Give you up)

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Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

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Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

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Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

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4 0
3 years ago
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