A 100-lbm block of a solid material whose specific heat is 0.5 Btu/lbmR is at 80F. It

Question:

A 100-lbm block of a solid material whose specific heat is 0.5 Btu/lbm·R is at 80°F. It is heated with 10 lbm of saturated water vapor that has a constant pressure of 20 psia. Determine the final temperature of the block and water, and the entropy change of
(a) The block,
(b) The water, and
(c) The entire system. Is this process possible? Why?