Explanation:
The given data is as follows.
= 100 mm Hg or = 0.13157 atm
= = (1080 + 273) K = 1357 K
= = (1220 + 273) K = 1493 K
= 600 mm Hg or = 0.7895 atm
R = 8.314 J/K mol
According to Clasius-Clapeyron equation,
0.77815 =
= J/mol
=
= 221.9 kJ/mol
Thus, we can conclude that molar heat of vaporization of substance X is 221.9 kJ/mol.
B I hope it’s right I don’t really help a lot but yeah lol
Answer: 72 grams of are needed to completely burn 19.7 g
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number of particles.
To calculate the number of moles, we use the equation:
Putting in the values we get:
According to stoichiometry:
1 mole of requires 5 moles of oxygen
0.45 moles of require= moles of oxygen
Mass of
72 grams of are needed to completely burn 19.7 g
Answer:
c
Explanation:
I hope this may help you guys