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A flask with a volume of 1.50 L, providedwith a stopcock, contains ethane gas (C2H6)at 300 K and atomospheric pressure (1.013 x 105Pa). The molar mass of ethane is 30.1 g/mol. The systemis warmed to a temperature of 380 K, with the stopcock open to theatmosphere. The stopcock is then closed, and the flask cooledto its original temperature.
a) What is the final pressure ofthe ethane in the flask?
b) How many grams of ethane remainin the flask?
Water is pumped into a storage tank from a well delivering 21.0 gallons of water in 27.0 seconds through a pipe of 1.00 in.2 cross-sectional area.
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For N2 at 25oC and 1.00 atm calculate the number of collisions per second made by one molecule; the number of collisions per second per cubic centimeter; compare these values to N2 at 25oC and 1.0*10^-6 torr using the values already calculated Show a..
A 45.6-kg girl is standing on a 155-kg plank. Both originally at rest on a frozen lake that constitutes a frictionless, flat surface. The girl begins to walk along the plank at a constant velocity of 1.40 m/s relative to the plank. (a) What is the ve..
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A ball of mass M = 17 kg is suspended from a vertical inextensible string of length l = 1.5 m. A bullet of mass m = M/2 traveling with a horizontal velocity v = 9sqrt(g*L) collides with the ball, What is the velocity of the ball-bullet system
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