MHT CET Medical202623 April 2026Morning ShiftChemistryStates of MatterActual
Calculate the work done terms of dm ^3 bar when 200 ml of ethylene gas and 150 ml of HCl gas were allowed to react at 1 bar pressure.
Options
- A0.10
- B0.15
- C0.20
- D0.25
Correct answer
B. 0.15
Step-by-step solution
The balanced chemical equation for the reaction is: C₂H₄(g) + HCl(g) C₂H₅Cl(g) According to Avogadro's law, under identical conditions of temperature and pressure, equal volumes of gases contain equal numbers of moles. Thus, the gases react in a 1:1 volume ratio. Initial volume of the mixture, V_i = 200 ml + 150 ml = 350 ml Since HCl is the limiting reagent, 150 ml of HCl will react with 150 ml of C₂H₄ to form 150 ml of C₂H₅Cl(g) . Volume of unreacted C₂H₄ = 200 ml - 150 ml = 50 ml Final volume of the gaseous mixtu