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Mama L [17]
3 years ago
10

(copied from last question and fixed) (there's three question so triple points)

Chemistry
1 answer:
AleksAgata [21]3 years ago
8 0

Q1)The primary difference between the Boiling Water Reactor (BWR) and the Pressurized Water Reactor (PWR) is in how the steam that spins the main turbine generator is created. The BWR generates high pressure steam that leaves the reactor and goes directly to the turbine through the main steam piping.

Q2)This is generally buried underground, so it does not cause significant air pollution, greenhouse effect, or acid rain. These three are mostly caused by particulate matter or greenhouse gases that are emitted into the atmosphere

Q3)Neutrons


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Given the following information:Br2 bond energy = 193 kJ/mol F2 bond energy = 154 kJ/mol 1/2Br2(g) + 3/2F2(g) -&gt; BrF3(g) = –3
arlik [135]

Answer:

C) 712 KJ/mol

Explanation:

  • ΔH°r = Σ Eb broken - Σ Eb formed
  • 1/2Br2(g) + 3/2F2(g) → BrF3(g)

∴ ΔH°r = - 384 KJ/mol

∴ Br2 Eb = 193 KJ/mol

∴ F2 Eb = 154 KJ/mol

⇒ Σ Eb broken = (1/2)(Br-Br) + (3/2)(F-F)

⇒ Σ Eb broken =  (1/2)(193 KJ/mol) + (3/2)(154 KJ/mol) = 327.5 KJ/mol

∴ Eb formed: Br-F

⇒ Σ Eb formed (Br-F) = Σ Eb broken - ΔH°r

⇒ Eb (Br-F) = 327.5 KJ/mol - ( - 384 KJ/mol )

⇒ Eb Br-F = 327.5 KJ/mol + 384 KJ/mol = 711.5 KJ/mol ≅ 712 KJ/mol

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How many grams do 6 × 1020 atoms of helium weigh? Answer in units of g.
Rzqust [24]
1.2204504e-18   i think   hope this helped 
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