A chemist while studying the properties of gaseous , a chlorofluorocarbon refrigerant, cooled 1.25 g sample at constant atmospheric pressure of 1.0 atm from 320 K to 293 K. During cooling, the sample volume decreased from 274 to 248 ml. Calculate ΔH and ΔU for the chlorofluorocarbon for this process. The value of molar heat capacity is 80.7 J .

A chemist while studying the properties of gaseous , a chlorofluorocar

1.	A chemist while studying the properties of gaseous , a chlorofluorocarbon refrigerant, cooled 1.25 g sample at constant atmospheric pressure of 1.0 atm from 320 K to 293 K. During cooling, the sample volume decreased from 274 to 248 ml. Calculate ΔH and ΔU for the chlorofluorocarbon for this process. The value of molar heat capacity is 80.7 J .
Answer» E givenMass of = 1.25 gPressure = 1.0 atmLet’s CALCULATE the number of molesSince,SUBSTITUTING the all given values,Here,Substituting the all given values