A 2.75-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 185 kPA and the temperature is 10°C.How many moles of gas were lost? A)0)0 335 mol B)0)728 mol C)0)882 mol D)3)39 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 * 2.75 L) / (0.0821 L kPa/mol K * 298 K) = 0.0335 moln2 = (185 kPa * 2.75 L) / (0.0821 L kPa/mol K * 283 K) = 0.0272 molThe number of moles of gas lost is:nlost = n1 - n2 = 0.0335 mol - 0.0272 mol = 0.0063 molTherefore, the correct answer is A) 0.0063 mol.

A 275-L Container Filled with CO2 Gas at 25°C and 225

A 275-L Container Filled with CO₂ Gas at 25°C and 225