2 moles of solid benzoic acid undergoes combustion at 300 K . C 6 H 5 COOH s + 15 2 O 2 g → 7 CO 2 g + 3 H 2 O l . The value of Δ H – Δ U value is

Question

2 moles of solid benzoic acid undergoes combustion at 300 K . C 6 H 5 COOH s + 15 2 O 2 g → 7 CO 2 g + 3 H 2 O l . The value of Δ H – Δ U value is, - 1.247 k J, - 2.494 k J, + 2.494 k J, + 1.247 k J

MARKS App · Accepted Answer

C 6 H 5 COOH s + 15 2 O 2 g → 7 CO 2 g + 3 H 2 O l Δ H – Δ U = Δ n g R T = – 1 2 ( 8.314 ) × 300 1000 = − 1.247 kJ for two moles it is − 2.494 kJ

Search any question & find its solution

Looking for more such questions to practice?