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4 years ago

Which statement about the waste materials from nuclear power plants is true?

Chemistry

2 answers:

alina1380 [7]4 years ago

6 0

Answer: The correct answer is "The waste emits harmful radiation for a long time".

Explanation:

Nuclear fission: The nuclear energy is generated from the splitting of uranium atom. Here, Uranium is a radioactive material.

Nuclear reactor controls the release of energy.

The by product of the nuclear generation is the radioactive waste in the nuclear power plant. The radioactive material emits harmful radiation. Some industries throw their radioactive waste material in river. It would be harmful for marine life.

The radioactive material emits harmful radiation. If there is any leakage in the power plant. It could cause cancer, skin burn and birth defect to the employees who are working in the nuclear power plant.

Therefore, the true statement is "The waste emits harmful radiation for a long time".

lora16 [44]4 years ago

3 0

The waste emits harmful radiation for a long time.

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The heat content of a system is its

Arte-miy333 [17]

The heat content of a system is its enthalpy!

3 0

3 years ago

Read 2 more answers

011 10.0 points

Sphinxa [80]

Answer:

$-58.3^{\circ}C$

Explanation:

The frequency and the wavelength of a wave are related by the equation

$v=f\lambda$

where

v is the speed

f is the frequency

$\lambda$ is the wavelength

For the sound wave in this problem, we have

f = 634 Hz (frequency)

$\lambda=0.47 m$ (wavelength)

Therefore, the speed of the wave is

$v=(634)(0.47)=298 m/s$

The speed of sound in air depends on the temperature according to the equation

$v=333+0.6 T$

where T is the temperature.

In this problem, we know the speed, so we can calculate the temperature:

$T=\frac{v-333}{0.6}=\frac{298-333}{0.6}=-58.3^{\circ}C$

7 0

3 years ago

CaCO3 → CaO + CO2 Calculate the theoretical yield of Calcium Oxide if 24.8 grams of Calcium Carbonate decomposes. Calculate the

RideAnS [48]

Answer:

Theoretical yield: 13.9 g

Percent yield: 94 %

Explanation:

The reaction is:

CaCO₃ → CaO + CO₂

We see that the reaction is correctly balanced.

1 mol of calcium carbonate can decompose to 1 mol of calcium oxide and 1 mol of carbon dioxide.

We convert the mass to moles: 24.8 g . 1mol / 100.08g = 0.248 moles

As ratio is 1:1, 0.248 moles of salt can decompose to 1 mol of oxide.

We convert the moles to mass: 0.248 mol . 56.08g /1mol = 13.9 g

That's the theoretical yield.

To determine the percent yield we think:

(Determined yield / Theoretical yield) . 100 → (13.1 / 13.9) . 100 = 94 %

5 0

3 years ago

Three moles of oxygen gas is stored in a 2.5-liter container at 35°C. What is the pressure of this gas?

nadezda [96]

Answer:

The pressure of the gas is 30.3072 atm.

Explanation:

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P * V = n * R * T

In this case:

P= ?
V= 2.5 L
n= 3 moles
R= 0.082 $\frac{atm*L}{mol*K}$
T= 35 C= 308 K (being 0 C= 273 K)

Replacing:

P* 2.5 L= 3 moles* 0.082 $\frac{atm*L}{mol*K}$ *308 K

Solving:

$P=\frac{ 3 moles* 0.082 \frac{atm*L}{mol*K} *308 K}{2.5 L}$

P= 30.3072 atm

<u><em>The pressure of the gas is 30.3072 atm.</em></u>

4 0

3 years ago

A relationship in which one variable increases as the other variable decreases is an inverse relationship.

Brut [27]

Answer:

TRUE

Explanation:

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8 0

3 years ago