Answer:
Required compressor work W=8560.44 KJ/Kmol
Explanation:
Given that
Initial pressure = 1 bar
Final pressure = 40 bar
Process is isothermal and T=280 K
We know that ,work done in isothermal process given as
given taht gas is ideal so
P V =m R T
R for ethylene
R=0.296 KJ/kg.K
Now by putting the values
W= -305.73 KJ/kg
Negative sign indicates that work done on the system.
Required compressor work W=305.73 KJ/kg
Molar mass of ethylene M= 28 Kg/Kmol
So W= 305.73 x 28 KJ/Kmol
W=8560.44 KJ/Kmol
Required compressor work W=8560.44 KJ/Kmol
Answers are:
1) ΔH is negative because that is combustion reaction and heat is released, enthalpy of combustion is -2877.5 kJ/mol.
2) ΔS is positive, because there more molecules on the right side of balanced chemical reaction, standard molar entropy is <span>310.23 J/mol</span>·<span>K.
</span>3) ΔG = ΔH - TΔS.
ΔG = -2877.5 kJ/mol - 298 K · 310.23 J/mol·K.
ΔG = -2969.95 kJ/mol.
Yes it’s a real substance and yes it should be banned because it kills people without warning.It has no taste,smell,and you can’t see it.
Answer:
H
Explanation:
Hydrogen is a nonmetal love:)
Answer:
When magma reaches the surface, its dissolved gas content increases is true
<u>Explanation</u>:
The volcanic eruptions happen because of magma that is expelled on the earth’s surface. At the earth’s depth, all magma have gas dissolved in liquid. When the pressure has decreased the magma rises towards the earth’s surface creating a separate vapour phase.
As pressure reduces the volume of gas will expands and giving magma its 'explosive character'. Thus, as magma reaches the surface the dissolved gas content decreases and magma comes out of earth’s surface.
