A reaction vessel contains 8.06 g of H2 and 64.0 gof O2 at a temperature of 125?C and a pressure of 125kPa .
What is the volume of the vessel?
The hydrogen and oxygen are now ignited by a spark, initiating the reaction 2H2+O2?2H2O.
This reaction consumes all the hydrogen and oxygen in the vessel. What is the pressure of the resulting water vapor when it returns to its initial temperature of 125?C?