Question

ADVANCED MATERIAL Predicting qualitatively how entropy changes with temperature and volume For each pacem listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave Sunchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System Change AS O ASCO O AS = 0 O AS > 0 The acetone is cooled from 9.0 °C to A few grams of liquid acetone (CHCo). not enough information ASCO AS=0 A few moles of carbon dioxide (CO) gas. The carbon dioxide expands from a volume of 1.0 L to a volume of 7.0 L while the temperature is held constant at 50.0°C O AS > 0 not enough information O ASCO ASO A few moles of nitrogen (N.) gas. The nitrogen is heated from -5.0 °C to 90.0 C and is also compressed from a volume of 9.0 L to a volume of 8.0 L AS >O not enough information Explanation ) Check S u ation All Richts Reserved. Terms of Use Per

Answer 1

The entire solution is attached below :

We know, As= C. ln (12/7) + Rin (V2/W) a where, as = change in entropy 112, , = Final and initial temperatures respectively. Il V2, V, = final and initial volumen respectively. R = Gas constant. I a specific heat at constant volume groot ''. A5- 2771 282 (a) Acetone is cooled from ac to 4°C. - Assuming no volume change, T2 = 277 K & T = 282 k Las= Cuin (232) 2 Here, in (277/282) co and ano Tascol (b) cq expands from IL to 74 at 50°c (const). ...V,= 1 L :: AS = Rin - Ringe = 10.178 ASSO (R20 km770] CO 1271

contraction 10 N2 heated from -5% to 900 and occoura from alto 8L. 11 T2 = 363 K IT,= 268 K Tri=9L 1 V2 = 8L @donose G(N2) = 25 .. 13 = Gvin 2, Rm - As a 25a in 12631+ 8.314 in 1891 5 As 6-6 [Asso Note - G of Nz is taken from a standard and data set just to analyse the order of magnitude of As.