Question

1. When ammonium chloride is heated the vapour pressure at 427°C is 6.0 bar. At 459°C the vapour pressure has risen to 11.0 bar. The dissociation equilibrium is: NHACI(S) NH3(g) + HCl(g) What is (i) the equilibrium constant at both temperatures; (ii) the standard Gibbs energy of the dissociation reaction at 427°C; (iii) the molar dissociation enthalpy at 427°C; (iv) the molar dissociation entropy at 427°C? din K - 4H a(1/) R

Answer 1

Jouin- NHYCHIS) = MHz (9)+ HC118) : kp = PNHIPHCl the equilibrium activities of constant each is gir species . . is 1 ; olare solid k=aning ance A MHYCLE activity for any peu thes, ka anna ahela Achuity of any gas is given by as ist die platbar Theis k = Phra Pher po Toral Pressive PNH3 + PHCl from the balanced equation Imol of reach product is produced, this an assumption that is valid in this is that the partial pressure of each component are equal. p = PN Ha ~ Pace i p = PmziaPhoce = 2 PRH 3 This at 427°C ka pun pe pagina 4 (A) k ty/ 608 kela) .2416 Ans 100 kPa)

At 459°C k=tx/1115 kea) ² . * Tookea) - 31108063 · Any ii) sh Cut. 427°C sha-RT ank AG=-80314 I took in 9-2416 molke AS 962 -12941:57 ore mo 10) BH at 427°C un ke - inky = - der de tre ) In 31.08- 69.24 - (the too) 109120. 57 Ay H x 147.571x100) Art = 161499.4861 mo Ares 10 AG=AH-TAS -1294157.31674.99.4861 - 700 xos As=249.20 And I molk

Thank you...please upvote it..