Question

What volume of O2(g) at 45.2 C and 104.0 kPa is required for the complete combustion of 5.60 L of C2H40(g) at the same temperature and pressure? Hint: write the chemical equation. Assume ideality.

Answer 1

Ano Reaction :- 2 C2lty o +52 - 4 CQ + 4 140 For GlHyo :- - SobL - 104 kPa = 1.03 atm. T= 45.2°C = 318.2k. let, no. of moles an, So, PV, a ,RT, RT,

an = 1.03x 5.6 082 x 318.2 > n, a .22 moles of Calty 0 As per the reaction, 2 moles Calty 0 reacts with 5 moles o .22 moles City o reacts with 5x.22 - 055 moles O. 2 -_ine So, using Pik= nRT, Va nz RT, 2 a 55 x. 082 X 318.2 ___ 103 » Ya 142 14 L O will be required.