Assignment on Chemistrty PDF

CHEMISTRY ASSIGNMENT
[Author Name(s), First M. Last, Omit Titles and Degrees]
[Institutional Affiliation(s)]

Q1: All gases becomes fluids at certain temperatures and pressure
Q2: As the absolute temperature increases, the average kinetic energy of the molecules
increases. An increase in temperature increases the rate of collision of the particles.
Q3: Low temperatures and high pressures. The deviations of actual gases often agree with the
predictions of the ideal gas equation to a limit of 5% at normal pressures and temperatures.
Q4: The entire above are correct
Q5: E. For the choice C, the kinetic energy refers to the speed of molecules in a given sample
which is often fully dependent on the temperatures. The real molecular composition of the
chemical is not of interest with kinetic energy. Should both chemical be at the same temperature
then their molecules are moving at the same speed and thus their kinetic energy being identical.
Q6: P1V1=P2V2; V2=P1V1/P2
=720×5/790=4.557L
Q7: V1/T1=V2/T2
V2=V1T2/T1
=1×293/303=0.967 L
Q8: PV=nRT
n=PV/RT=2×0.2/0.0821×323
=0.015 moles
Q9: PV=nRT

n=PV/RT=3×2.42/0.0821×373
=0.237 moles
Molar Mass=10/0.237=42.19 g/mol
Q10: N2 (g) + 3H2 (g)  2NH3 (g)
Moles ratio of N: H=1:3
Volume of N=1×20/3=6.667 L
Q11: P1V1/T1=P2V2/T2
V2=P1V1T2/P2T1
=0.5*300×273/1×96
=426.56 mL=4.3×102 mL
Q12: 2Al(s) + 3H2SO4  Al2 (SO4)3 + 3H2
Mole ratio of Al: H2=2:3
Moles of H2 produced=3×0.5/2=0.75 moles
Volume of H2 produced
1 mole=22400 mL
0.75 moles=0.75×22400/1=16800 mL
Q13: P1/T1=P2/T2