Physics, 31.08.2019 03:20, ryleerose255

We consider a gas in thermal equilibrium with a reservoir. if a piston does a certain amount of work on the gas w very slowly (isothermal compression), how does s change for the gas? s should decrease right? using s = q/t, the system loses q and therefore s should decrease. but doesn't a system always increase in entropy?

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We consider a gas in thermal equilibrium with a reservoir. if a piston does a certain amount of work...