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ozzi
3 years ago
14

What effect does supercritical mass have on a nuclear reaction?

Chemistry
2 answers:
Firdavs [7]3 years ago
5 0
 The reaction produces fewer neutrons its <span>rate increases and it produces less energy.</span>
Mama L [17]3 years ago
5 0

Answer:

The reaction rate increases.

Explanation:

To sustain a nuclear reaction, the mass of the reactor fuel should be theshold or sufficient for the reaction to carry. Critical mass is defined as the minimum quantity of the fissile material required to achieve a self-sustaining fission chain reaction under stated conditions. A critical mass is required in order to continue the chain reaction and the release of atomic energy.

    Supercritical mass is the mass of  reactor fuel which is more than needed to sustain the chain reaction. So when the state of supercritical mass is achieved, the nuclear rate increases exponentially.

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Which reaction is more likely to involve a form of combustion (exothermic)? Explain your reasoning.
Andrews [41]

Answer:

The general equation for an exothermic reaction is: Reactants → Products + Energy.

3 0
3 years ago
Read 2 more answers
For a particular isomer of C 8 H 18 , the combustion reaction produces 5113.3 kJ of heat per mole of C 8 H 18 ( g ) consumed, un
ale4655 [162]

Answer:

ΔH°f(C₈H₁₈(g)) = -210.9 kJ/mol

Explanation:

Let's consider the combustion of C₈H₁₈.

C₈H₁₈(g) + 25/2 O₂(g) ⟶ 8 CO₂(g) + 9 H₂O(g) ΔH°rxn = − 5113.3 kJ

We can calculate the standard enthalpy of formation of C₈H₁₈(g) using the following expression.

ΔH°rxn = 8 mol × ΔH°f(CO₂(g)) + 9 mol × ΔH°f(H₂O(g)) - 1 mol × ΔH°f(C₈H₁₈(g)) - 25/2 mol × ΔH°f(O₂(g))

1 mol × ΔH°f(C₈H₁₈(g)) = 8 mol × ΔH°f(CO₂(g)) + 9 mol × ΔH°f(H₂O(g)) - 25/2 mol × ΔH°f(O₂(g)) - ΔH°rxn

1 mol × ΔH°f(C₈H₁₈(g)) = 8 mol × (-393.5 kJ/mol) + 9 mol × (-241.8 kJ/mol) - 25/2 mol × 0 kJ/mol - (− 5113.3 kJ)

ΔH°f(C₈H₁₈(g)) = -210.9 kJ/mol

5 0
3 years ago
Which of the following statements is true about nuclear power? A) It releases greenhouse gases. B) It does not produce wastes. C
antiseptic1488 [7]

A?

I think its A but I am not 100% sure.

3 0
3 years ago
A student wants to test if giving dogs a toy to play with makes their tail wag more. He gives dog toys to one group, while anoth
kicyunya [14]

Answer:

Experimental: the dogs who get the toys

Control: the dogs who dont recieve a toy

Explanation:

expermental is the group that recieved the tested variable in this case that being the toy

control is the group that doesn't recieve the tested variable

4 0
3 years ago
How do you calculate the number of moles in CO2
gogolik [260]

Answer:

The number of molecules in a mole (known as Avogadro's constant) is defined such that the mass of one mole of a substance, expressed in grams, is equal to the mean molecular mass of the substance. The molecular mass of CO2 = 12+2x16 = 44, so the mass of a mole of CO2 is approximalty 44 grams

Explanation:

3 0
3 years ago
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