Which one of the following portland cement compounds has the highest contribution to the rate of long-term strength gain in concrete. (5 pts) Select one: a. C4AF b. C3S c. C2S d. C3A

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process

What is a monomer? how do they form a ploymer from the view point of chemical bonding?