A sealed, rigid container of ideal gas is allowed to cool from to by transferring…

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

A sealed, rigid container of ideal gas is allowed to cool from

400\,\text{K}

300\,\text{K}

by transferring thermal energy to an external water bath. Which of the following correctly describes the signs of the entropy changes of the gas (

\Delta S_{\text{gas}}

) and of the water bath (

\Delta S_{\text{bath}}

)? (a)

\Delta S_{\text{gas}} > 0\; ; \; \Delta S_{\text{bath}} < 0

(b)

\Delta S_{\text{gas}} > 0\; ; \; \Delta S_{\text{bath}} > 0

(c)

\Delta S_{\text{gas}} < 0\; ; \; \Delta S_{\text{bath}} > 0

(d)

\Delta S_{\text{gas}} < 0\; ; \; \Delta S_{\text{bath}} = 0