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Thermodynamics question

2011 · Shift 2 · Q7
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Thermodynamics question

2011 · Shift 2 · Q7

JEE AdvancedChemistryThermodynamicsMCQ+4 / −1
Match the transformations in column I with appropriate options in column II Column I (A) CO2CO_2CO2​(s) →\to→ CO2CO_2CO2​(g) (B) CaCO3CaCO_3CaCO3​(s) →\to→ CaOCaOCaO(s) + CO2CO_2CO2​(g) (C) 2HHH →\to→ H2H_2H2​(g) (D) PPP(white, solid) →\to→ PPP(red, solid) Column II (p) phase transition (q) allotropic change (r) ΔH\Delta HΔH is positive (s) ΔS\Delta SΔS is positive (t) ΔS\Delta SΔS is negative
  1. A
    A →\to→ p,r,s; B →\to→ r,s; C →\to→ t; D →\to→ p,q,t
  2. B
    A →\to→ r,s; B →\to→ p,s; C →\to→ t; D →\to→ p,q,t
  3. C
    A →\to→ p,r,s; B →\to→ r,s; C →\to→ r; D →\to→ p,t
  4. D
    A →\to→ p,r,s; B →\to→ r,s; C →\to→ t; D →\to→ q,t
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