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mars1129 [50]
3 years ago
12

Which phase of matter is distinguished by a superheated gas that emits light?

Chemistry
1 answer:
mariarad [96]3 years ago
7 0

Answer:

I think it is Plasma

Explanation:

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Ammonia (NH3) boils at -33∘C; at this temperature it has a density of 0.81 g/cm3. The enthalpy of formation of NH3(g) is -46.2 k
Minchanka [31]

Answer:

-87098.82kJ

Explanation:

Hello,

This process could be attained into two steps due to the specified conditions at assuming that it is at -33°C at the beginning:

ΔH=ΔvapH+ΔrH

Thus:

ΔvapH=5L*0.81\frac{kg}{L}*\frac{1000g}{1kg}*\frac{1molNH_3}{17gNH_3}*23.2\frac{kJ}{molNH_3}=5527.06kJ

Once the ammonia is gaseous, the burning chemical reaction is:

NH_3+\frac{3}{4} O_2-->\frac{1}{2}N_2+\frac{3}{2}H_2O

So the enthalpy of reaction for the given amount of ammonia is:

ΔrH=5L*0.81\frac{kg}{L}*\frac{1000g}{1kg}*\frac{1molNH_3}{17gNH_3}*(\frac{3}{2}*-290\frac{kJ}{mol}-(-46.2\frac{kJ}{mol})  ) =-92625.88kJ

Finally, the total enthalpy is:

ΔH=5527.06kJ-92625.88kJ=-87098.82kJ

Best regards.

7 0
3 years ago
What is Cytokine Release Syndrome (CRS)
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Answer:

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Explanation:

4 0
3 years ago
Which animals use the specialized roles of diver and barrier while participating in cooperative hunting?
amm1812
I believe the answer is The Dolphins.
In their Cooperative hunting, The dolphins requires five of its members to form of barrier while one or two of them are herding (Driving) their preys toward the barriers. And each dolphins will always play the same role in their group just like what we see in a football team.
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3 years ago
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Go on google bro you can get more help there and hope you get what your looking for and good luck

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3 years ago
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I got the answer 26
I’m confused what the star after the 3 is

hoped this helped:)
5 0
3 years ago
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