Two kilograms of steam initially at 400ºC expand in an insulated cylinder from a pressure of 800 kPa to 100 kPa. Assuming no friction, the work produced is nearest:
A) 640 kJ
B) 720 kJ
C) 780 kJ
D) 830 kJ
C) 780 kJ
W = ?m(u2 ? u1) = ?2× (2570 ? 2960) = 780 kJ
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a. How many tons of hay are expected? b. How many bales are expected? c. How many cubic feet does it take to store the hay?
A _____ sells its stock publicly and can be owned by many people, often as an investment
A) closed corporation B) private corporation C) classic partnership D) limited partnership
Generally, one or more leaves are attached at a node
Indicate whether the statement is true or false
Bricks can be placed in one horizontal position to form a wall.
Answer the following statement true (T) or false (F)