When sodium reacts with chlorine, sodium chloride is produced. andrew represented this reaction with this equation: na + cl2 → 2nacl the equation is (blank 1) because the number of (blank 2) atoms is (blank 3) on both sides of the arrow. blank 1 a) balanced b) not balanced blank 2 a) chlorine b) sodium blank 3 a) equal b) not equal

An air standard cycle with variable specific heats is executed in a closed system and is composed of the following four processes. 1-2 isentropic compression 100 kpa and 22°c to 600 kpa 2-3 v=constant heat addition to 1500 k 3-4 isentropic expansion to 100 kpa 4-1 p=constant heat rejection to initial state (a) show the cycle on p-v and t-s s (b) calculate the net work output per unit mass (409 kj/kg) (c) determine the thermal efficiency (47.9%)