Title Chem P2C4 তড়িৎ রসায়ন Written With Solve.pdf ✅

Zwor imvqb  Engineering Practice Sheet 1 PZz_© Aa ̈vq Zwor imvqb Electro Chemistry ACS Chemistry Department Gi g‡bvbxZ wjwLZ cÖkœmg~n Type-01: Zwor we‡kø‡l ̈i cwievwnZv 1| 1 M H2SO4 `ae‡Yi Av‡cwÿK †iva 6.25 ohm–1 cm–1 | `aeYwUi Zzj ̈ cwievwnZv wbY„q Ki| mgvavb: 1 M H2SO4 ev, 98g H2SO4 Av‡Q 100 cm3 = 500 cm3 `ae‡Y myZivs, Veq = 500 cm 3 Ges  = 1  = 1 6.25 ohm–1 cm–1 = 0.16 ohm–1 cm–1  `aeYwUi Zzj ̈ cwievwnZv,  = Veq = 0.16 × 500 ohm–1 cm2 (g.equiv)–1 = 80 ohm–1 cm2 (g.equiv)–1 (Ans.) 2| 298 K ZvcgvÎvq GKwU cwievwnZv †m‡j 0.05M NaOH `ae‡Yi †ivN 31.6 ohm| †mj aaæeK 0.367 cm–1 n‡j NaOH `aeYwUi †gvjvi cwievwnZv wbY©q Ki| mgvavb: 0.05 M NaOH `aeY, gv‡b, 0.05 mole NaOH Av‡Q 100 cm3 `ae‡Y  1 mole NaOH Av‡Q 1000 0.05 cm3 `ae‡Y = 20,000 cm3 `ae‡Y  Vmolar = 20,000 cm3 Ges †mj aaæeK =  A = 0.367 cm–1 [cÖkœg‡Z] Ges `aeYwUi Av‡cwÿK †iva =  = RA  = R. 1      A = 31.6 0.367 ohm cm  Av‡cwÿK cwievwnZv,  = 1  = 0.367 31.7 ohm–1 cm–1  `aeYwUi †gvjvi cwievwnZv =  =  × Vmolar = 0.367 31.7 × 20000 cm2 ohm–1mole–1 = 232.278481 ohm–1mole–1 (Ans.) 3| 1.5 †mwg eM© cÖ ̄’‡”Q‡`i Ges 072cm cvi ̄úwiK `~i‡Z¡ ivLv `ywU ZworØv‡ii g‡a ̈ M/10 `aeY ivL‡j †`Lv hvq †h, Zvi •e`y ̈wZK †iva 52.4 ohm nq| `aeYwUi Av‡cwÿK cwiPvwnZv wbY©q Ki| mgvavb: `aeYwUi Av‡cwÿK cwievwnZv =  =  RA = 0.72 52.4 × 1.5 ohm–1 cm–1 = 9.16 × 10–3 ohm–1 cm–1 (Ans.) 4| 25C ZvcgvÎvq GKwU cwievwnZv †Kv‡li Zwo`Øvi `ywUi ga ̈eZx© `~iZ¡ n‡jv 2 cm Ges cÖwZwUi cÖ ̄’‡”Q` n‡jv 4 cm2 | 0.005 M NbgvÎvi KCl `aeY Øviv H †KvlwU c~Y© Kiv n‡j †KvlwUi †iva nq 5.75 ohm| KCl `ae‡Yi Av‡cwÿK cwievwnZv wbY©q Ki| mgvavb: Avgiv Rvwb, Av‡cwÿK cwievwnZv,  = 1 R × 1 A   = 1 5.75 ×     2 4 = 8.6956 × 10–2 ohm–1 cm–1  KCl `ae‡Yi Av‡cwÿK cwievwnZv 8.6956 × 10–2 ohm–1 cm–1 5| 25C ZvcgvÎvq †Kv‡bv GKwU cwievwnZv †Kv‡li Zwo`Øvi `ywUi ga ̈eZx© `~iZ¡ 0.95 cm Ges cÖwZwUi cÖ ̄’‡”Q` n‡jv 1.8 cm2 | cÖwZwjUvi `ae‡Y 29.25 g NaCl `aexf~Z K‡i `aeY Øviv H †KvlwU‡K c~Y© Kiv n‡j †KvlwUi †iva nq 7.25 ohm| H `ae‡Yi Av‡cwÿK cwievwnZv I Zzj ̈ cwievwnZv wbY©q Ki| mgvavb: Avgiv Rvwb, Av‡cwÿK cwievwnZv,  = 1 R × 1 A GLv‡b, R = †KvlwUi †iva = 7.25 ohm l = Zwo`Øvi `ywUi ga ̈eZx© `~iZ¡ = 0.95 cm A = Zwo`Øv‡ii cÖ ̄’‡”Q` = 1.8 cm2 R = Zworwe‡kø‡l ̈i Av‡cwÿK cwievwnZv = ?  Av‡cwÿK cwievwnZv,  = 1 7.25 × 0.95 1.8 = 7.279 × 10–2 ohm–1 cm–1  Zworwe‡køl ̈ `aeYwUi Av‡cwÿK cwievwnZv 7.279 × 10–2 ohm–1 cm–1 | cybivq Avgiv Rvwb, Zzj ̈ cwievwnZv, A =  × 1000 cm3 C GLv‡b,  = Zworwe‡kø‡l ̈i Av‡cwÿK cwievwnZv = 7.279 × 10–2 ohm–1 cm–1 | C = NaCl `ae‡Yi NbgvÎv = 29.25 58.5 = 0.5 g.eqv. A = NaCl `ae‡Yi Zzj ̈ cwievwnZv = ?  NaCl `aeYwUi Zzj ̈ cwievwnZv,  = 7.279 × 10–2 × 1000 58.5 = 145.58 ohm–1 cm2 (g eqv)–1  NaCl `aeYwUi Zzj ̈ cwievwnZv 145.58 ohm–1 cm2 (g eqv)–1