Question

Problem 12.69 A Revi A container holds 14 g of oxygen at a pressure of 6.5 atm Y Part A How much heat is required to increase the temperature by 110 °C at constant pressure? Express your answer in joules. ΑΣΦ ? Submit Recuest Alls Part How much will the temperature increase the amount of heat energy is transferred to the gas at constant volume? Express your answer in degrees Celsius Ο ΑΣΦ th AT 'C

Answer 1

Given m=1.4g part A The heat energy Q = nCp AT where Ô is number of Oxygen gas moles 1.49 3291) M 0.043 75 mol Hence T = 110°C : 383.15k Q = nCPAT specific heat of oxygen cp = 29.378 J/molk Q = 0.043 754 29.378 J x 383.15k mork Q : 492.45 J Part- B At constant Volume Process AT = Q nu cp-CvER - Cv = cp-R 534.37K Goo R Cp ATZ 492.45 0.04375 x 21.064 - AT= 261.21