The first one
A gas stove burner
Answer:
The Eukaryotic cell has a nucleus
Explanation:
Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.
Final temperature if the average specific heat capacity of the products is 2.5 J/g·°C is 1302.57°C
Given reaction:
C₂H₄O(g) → CH₄(g) + CO(g)
Now,
Given data for this reaction is :
ΔH°f =-77.4 kJ/mol
ΔH°vaporization =569.4 J/g
= 569.4J/g × 44.0g/mol
ΔH°vaporization= 25.082 kJ/mol
Now,
ΔH°vaporization = H(vapor) - H(liquid)
25.082 = H(vapor) + 77.4 kJ/mol
H(vapor) = -52.318 kJ/mol
Again,
ΔH°rxn = ( H( CO(g))) + (H(CH₄(g))) - (H( C₂H₄O(g)))
= -110.5 - 74.87 + 52.318
ΔH°rxn = -133.053 kJ/mol
Now,
Given
T₁= 93°C = 366K
We know that,
Q= mcΔT
133.053 × 10³ = 44 × 2.5 × (T₂ - 93)
T₂ = 1302.57°C
Thus, from the above conclusion we can say that , Final temperature if the average specific heat capacity of the products is 2.5 J/g·°C is 1302.57°C .
Learn more about Ethylene oxide here: brainly.com/question/14638014
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Potential energy (PEI due to gravity = mgh
Where, m= mass of the billboard, g=gravitational acceleration (9.81 m/s^2), h = height
Therefore,
m= PE/(gh) = 175000/(9.81*30) = 594.63 kg
Answer:
A river forms from water moving from a higher elevation to a lower elevation, all due to gravity. ... As small creeks flow downhill they merge to form larger streams and rivers. Rivers eventually end up flowing into the oceans. If water flows to a place that is surrounded by higher land on all sides, a lake will form.