Problem $1(20$ points$)$

Are the following statements true or false? If false, correct the statement.

Statement

a$)$ For a closed system both energy and mass are conserved.

b$)$ Total internal energy is an intensive property.

c$)$ For an irreversible process the output power is maximum and the inlet power is minimum

d$)$ For a cyclic process the net work done is zero.

e$)$ The quality of steam is the mass fraction of vapor and its value is positive.