Bernice is conducting a study on how homelessness affects mental disorders. Her study was conducted with no errors and the research would be clearly helpful to many people. During the study, Bernice appeared repulsed by her subjects and wore gloves and a face mask when interacting directly with them. Which of the following principles of psychology or codes of conduct did Bernice violate? Beneficence and Nonmaleficence Fidelity and Responsibility Respect for People’s Rights and Dignity Competence

I) a gas contained within a piston-cylinder assembly undergoes two processes, a and b, between the same end states, 1 and 2, where p1 = 10 bar, v1 = 0.1 m3 , u1 = 400 kj and p2 = 1 bar, v2 = 1.0 m3 , u2 = 200 kj: ' process a: process from 1 to 2 during which the pressure-volume relation is pv = constant. ' process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to state 2. kinetic and potential energy effects can be ignored. for each of the processes a and b, a) sketch the process on a p-v diagram. b) evaluate the work, in kj. c) evaluate the heat transfer, in kj.(ans : qb,12 = -65.0 kj)