A 1.75 L container filled with CO₂ gas at 25°C and 225 kPa pressure springs a leak.When the container is re-sealed,the pressure is 200 kPA and the temperature is 10°C.How many moles of gas were lost? A)0.0101 mol B)0.149 mol C)6.71 mol D)99.0 mol

Question

Quizplus · Accepted Answer

Using the ideal gas law, we can calculate the number of moles of gas lost:PV = nRTn = PV/RTn1 = (225 kPa * 1.75 L) / (0.0821 L*atm/(mol*K) * 298 K) = 1.49 moln2 = (200 kPa * 1.75 L) / (0.0821 L*atm/(mol*K) * 283 K) = 1.39 moln_lost = n1 - n2 = 1.49 mol - 1.39 mol = 0.1 molTherefore, the correct answer is A) 0.1 mol.

A 175 L Container Filled with CO2 Gas at 25°C and and 225

A 175 L Container Filled with CO₂ Gas at 25°C and and 225