2.A sample consisting of 2.5 mol of perfect gas at 220K and at 200kPa is compressed reversibly and adiabatically until the temperature reaches 255K.Given that its molar constant-volume heat capacity is 27.6JK-1mor1,calculate Q,W,△U,△Hand the final pressure and volume. PDF文件使用"pdfFactory Pro”试用版本创建ffm,fineprint.com,cn 3 2. A sample consisting of 2.5 mol of perfect gas at 220K and at 200kPa is compressed reversibly and adiabatically until the temperature reaches 255K. Given that its molar constant-volume heat capacity is 27.6JK-1mol-1 ,calculate Q,W, DU ,DH and the final pressure and volume. PDF 文件使用 "pdfFactory Pro" 试用版本创建 fwww.fineprint.com.cn f