A piston filled with 0.04 mol of ideal gas expands reversibly from 50.0mL to 375 mLat a constant temperature of 37.0^(@)C. As it does so, itabsorbs 208J of heat. The value of q and w for the process will be : ( R= 8.314J // mol K , ln7.5 =2.01 )

A piston filled with 0.04 mol of ideal gas expands reversibly from 50.

1.	A piston filled with 0.04 mol of ideal gas expands reversibly from 50.0mL to 375 mLat a constant temperature of 37.0^(@)C. As it does so, itabsorbs 208J of heat. The value of q and w for the process will be : ( R= 8.314J // mol K , ln7.5 =2.01 )
Answer» <html><body><p>`<a href="https://interviewquestions.tuteehub.com/tag/q-609558" style="font-weight:bold;" target="_blank" title="Click to know more about Q">Q</a>= + <a href="https://interviewquestions.tuteehub.com/tag/208-292892" style="font-weight:bold;" target="_blank" title="Click to know more about 208">208</a> J , w= + 208 J`<br/>`q = + 208 J , w = - 208 J`<br/>` q = - 208 J , w= - 208 J`<br/>`q = - 208 J, w= +208 J`</p>Solution :For isothermal <a href="https://interviewquestions.tuteehub.com/tag/expansion-980011" style="font-weight:bold;" target="_blank" title="Click to know more about EXPANSION">EXPANSION</a> of an ideal gas, `DeltaU = 0`. Hence,from <a href="https://interviewquestions.tuteehub.com/tag/first-461760" style="font-weight:bold;" target="_blank" title="Click to know more about FIRST">FIRST</a> law of thermodynamics, `DeltaU = q+w` , we have `q= -w` . As process <a href="https://interviewquestions.tuteehub.com/tag/involves-519086" style="font-weight:bold;" target="_blank" title="Click to know more about INVOLVES">INVOLVES</a> adsorption of heat, i.e., it is endothermic `q= + 208 J:. W= - 208 J`</body></html>