please solve question 1

please solve question 1 PART - II (CHEMISTRY) cgntains 30 multiple Each to, out of which ONLY ONE is c PART - : SUBJECTIVE QUESTIONS section (A) : Calculation AU, 'NH & W r he between heats at constant p (ABC) + 150, 17C02 /-2_. Farthe ' 2COa(g'• 2 o f , is in 250C the Section (B) : Basics & Kirchoffs law Classify 'he following processes ag Burning 01 a match Stick solidifies Rutting alcoho e•nporates between Na 8-2. For a chemical reaction, nega:ive The heat required increase required increase temperature same Relate g, and a; 8-3. Diborane is a potential rocket which apÅG) From the fogowing data, 2a{s) oÅgJ rnol-'

Dear Student,

The difference between heats of reaction at constant pressure and constant volume for the following reaction at 25 C in kJ.

2 C_{6} H_{6_{(l)}} + 15 O_{2_{(g)}} \to 12 C {O_{2}}_{(g)} + 6 H_{2} O_{(l)} ∆ n = 12 - 15 = - 3 ∆ H = ∆ E + R T ∆ n ∆ H - ∆ E = R T ∆ n = (- 3) \times 8.314 \times 10^{- 3} \times 298 = - 7.443 k J / m o l e

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