Spears and knives
(Plz thank me if this helped)
From the ideal gas equation, we know that PV = nRT
where, P = pressure, V = volume occupied, n = number of moles of gas, R = universal gas constant=0.082L atm mol-1 K-1 and T = temperature.
Given: P = 2.8 atm, V = 98 l and T = 292 k.
Therefore n =
![\frac{PV}{RT}](https://tex.z-dn.net/?f=%20%5Cfrac%7BPV%7D%7BRT%7D%20)
=
![\frac{2.8 X 98}{0.082 X 292}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2.8%20X%2098%7D%7B0.082%20X%20292%7D%20)
= 11.46
The given thermochemical reaction is between hydrogen gas and chlorine gas to form hydrogen chloride.
This can be represented as:
Δ
=-184.6 kJ/mol
So when two moles of HCl is formed, 184.6 kJ of energy is released.
Calculating the heat released when 3.18 mol HCl (g) is formed in the reaction:
![3.18 molHCl*\frac{184.6kJ}{2molHCl} =293.5 kJ](https://tex.z-dn.net/?f=3.18%20molHCl%2A%5Cfrac%7B184.6kJ%7D%7B2molHCl%7D%20%3D293.5%20kJ)
Therefore, 293.5 kJ of heat is released when 3.18 mol HCl is formed in the reaction between hydrogen and chlorine.
Glycine: Yes.
Dextrose: No.
Hope this helps! (: