Answer to Question #246341 in Mechanical Engineering for Md mhd

Question

In a non flow process there is heat transfer loss of 1055kJ and internal energy increase of 210kJ determine the work transfer and state whether the process is expansion or compression

Answer 1

$Q =-1055kJ\\ ∆U = 210kJ\\ W =\ ?$

$∆U = Q- W\\ 210= -1055-W\\ W = 1265\ kJ$

Since work done is positive, there is an increase in volume.