Positive deviation from Raoult's lawराउल्ट नियम से धनात्मक विचलनPositive deviation from Raoult's law

NCERT Fig 1.6 (a) · Class 12 Chemistry · Chapter 1 · interactive diagram

Parts and what they mean

• Actual total vapour pressure (वास्तविक कुल वाष्प दाब) — Lies ABOVE the ideal line: A–B attractions are weaker than A–A and B–B, molecules escape more easily.
• Partial pressure of A (A का आंशिक दाब) — Also deviates from xA·pA⁰ in the same direction.
• Partial pressure of B (B का आंशिक दाब) — Also deviates from xB·pB⁰ in the same direction.
• Dashed lines: what Raoult’s law predicts (टूटी रेखाएँ: राउल्ट नियम की अपेक्षा) — An ideal solution would follow these straight lines exactly.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 1.6 (a). Report a mistake