A 2.25-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 185 kPA and the temperature is 10°C.How many moles of gas were lost? A) 0.0274 mol B) 0.595 mol C) 0.721 mol D) 2.78 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 * 2.25 L) / (8.314 J/mol*K * 298 K) = 0.200 moln2 = (185 kPa * 2.25 L) / (8.314 J/mol*K * 283 K) = 0.173 molnlost = n1 - n2 = 0.0274 molTherefore, the correct answer is A) 0.0274 mol.

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

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