When gases react within a definite space(constant volume), will the pressure of the gases change if the reaction had released/absorbed heat? (question1)
Our teacher told us that the pressure will be lower after a reaction, because there is less moles in the product than in the regents, but then where is the law of conversion of mass?(question2) And about the temperature part, he didn't mention it at all, which is why I posted this.
Any response will be appreciated, thanks!