A first-order reaction $\mathrm{A}(\mathrm{g})\to 2\mathrm{B}(\mathrm{g})$ starts with pure A at 100 kPa in a rigid vessel. After exactly three half-lives the total pressure (in kPa) is

More questions on Monitoring reactions by pressure, titration and optical rotation

• Acid-catalysed hydrolysis of an ester is followed by titrating 5 mL aliquots with NaOH. The titres are 12.0 mL at t = 0, 18.0 mL at t = 30 m... JEE Main level
• In a polarimetric study of sucrose inversion the rotation is +40 deg at t = 0, +13 deg at t = 60 min and -14 deg at infinite time. Assuming ... JEE Main level
• Aliquots of decomposing H2O2 solution are titrated with acidified KMnO4; the titre is proportional to [H2O2]. The titre falls from 40.0 mL a... JEE Main level
• The first-order gaseous reaction A(g) -> B(g) + C(g) starts with pure A at 300 mmHg in a constant-volume vessel; the total pressure is 408 m... JEE Main level
• The first-order reaction A(g) -> 2B(g) + C(g) (k=0.03 min^-1) starts with pure A at 200 mmHg in a rigid vessel. Find the total pressure in m... JEE Main level
• The inversion of sucrose is pseudo-first-order with k=5.0x10^-3 min^-1. The initial rotation is +68.0 deg and the final rotation is -20.0 de... JEE Main level