Multiple choice question

Multiple choice question Multiple choice question

01.12.2012 Views

on consuming, two third of reactants equilibrium was established. Calculate the free energy change for this reaction iz'u&44 vfHkfØ;k dh fn'kk Kkr djus esa gsYegkYV~t lehdj.k dk mi;ksx fuEu fcUnqvks ds vk/kkj ij dhft;s& (a) tc �H ,oa T�S nksuks ds eku _.kkRed gksaA (b) tc �H ,oa T�S nksuks ds eku /kukRed gksaA (c) tc �H _.kkRed rFkk T�S /kukRed gksA (d) tc �H /kukRed vkSj T�S _.kkRed gksA How Helmholtz equation is helpful in determining the direction of a reaction. Give an account on the basis of following points– (a) When �H and T�S both are negative (b) When �H and T�S both are postive (c) When �H is negative & T�S is positive (d) �H is positive and T�S is negative. iz'u&45 Å"ek'kks"kh rFkk Å"ek{ksih vfHkfØ;kvksa ds fy;s vfHkfØ;k dh lEekO;rk ij rki dk D;k izHkko iM+rk gS] Li"V dhft;s\ Explain the effect of temperature for exothermic and endothermic reaction for the feasibility of a reaction. 42

cgqfodYih; cgqfodYih; iz'uA iz'uA bdkbZ&7 bdkbZ&7 ¼jklk;fud ¼jklk;fud lkE;½ lkE;½ (Atomic Structure and Chemical Bonding) cgqfodYih; iz'uA Multiple choice question 1 1 vad vad okys okys okys iz'u iz'u 1 N O 2 4 2NO vfHkfØ;k esa Kp rFkk Kc ds e/; laca/k gksxk& 2 In this reaction the relation between Kp and Kc will be– (a) Kp = Kc (b) Kp < Kc (c) Kp > Kc (d) Kp = Kc (RT) �H 2 H 2 + I 2 2HI ds fy;sA For reaction H 2 + I 2 2HI (a) Kp = Kc (b) Kp < Kc (c) Kp > Kc (d) Kp = Kc (RT) �H 3 PCl 5 PCl 3 + Cl 2 esa& In PCl 5 PCl 3 + Cl 2 (a) Kp = Kc (b) Kp < Kc (c) Kp > Kc (d) Kp = Kc + �nRT 4 2NO 2 N 2 O 4 ds fy;s& For 2NO 2 N 2 O 4 (a) Kp = Kc (b) Kp < Kc (c) Kp > Kc (d) Kp = Kc + �nRT 5 2NH 3 N 2 3H 2 vfHkfØ;k esa& For reaction 2NH 3 N 2 3H 2 (a) Kp = Kc (b) Kp < Kc (c) Kp > Kc (d) Kp = Kc(RT) �n 6 2SO 2 + O 2 2SO 3 ds fy;s& (a) Kp = Kc (b) Kp < Kc (c) Kp > Kc (d) Kp = Kc �nRT 43

cgqfodYih; cgqfodYih; iz'uA<br />

iz'uA<br />

bdkbZ&7<br />

bdkbZ&7<br />

¼jklk;fud ¼jklk;fud lkE;½<br />

lkE;½<br />

(Atomic Structure and Chemical Bonding)<br />

cgqfodYih; iz'uA <strong>Multiple</strong> <strong>choice</strong> <strong>question</strong><br />

1 1 vad vad okys okys okys iz'u<br />

iz'u<br />

1 N O 2 4 2NO vfHkfØ;k esa Kp rFkk Kc ds e/; laca/k gksxk&<br />

2<br />

In this reaction the relation between Kp and Kc will be–<br />

(a) Kp = Kc (b) Kp < Kc<br />

(c) Kp > Kc (d) Kp = Kc (RT) �H<br />

2 H 2 + I 2 2HI ds fy;sA For reaction H 2 + I 2 2HI<br />

(a) Kp = Kc (b) Kp < Kc<br />

(c) Kp > Kc (d) Kp = Kc (RT) �H<br />

3 PCl 5 PCl 3 + Cl 2 esa& In PCl 5 PCl 3 + Cl 2<br />

(a) Kp = Kc (b) Kp < Kc<br />

(c) Kp > Kc (d) Kp = Kc + �nRT<br />

4 2NO 2 N 2 O 4 ds fy;s& For 2NO 2 N 2 O 4<br />

(a) Kp = Kc (b) Kp < Kc<br />

(c) Kp > Kc (d) Kp = Kc + �nRT<br />

5 2NH 3 N 2 3H 2 vfHkfØ;k esa& For reaction 2NH 3 N 2 3H 2<br />

(a) Kp = Kc (b) Kp < Kc<br />

(c) Kp > Kc (d) Kp = Kc(RT) �n<br />

6 2SO 2 + O 2 2SO 3 ds fy;s&<br />

(a) Kp = Kc (b) Kp < Kc<br />

(c) Kp > Kc (d) Kp = Kc �nRT<br />

43

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