Determine rms speed of nitrogen molecules
What is the rms speed of nitrogen molecules contained in an 7.6 m^3 volume at 2.2 atm if the total amount of nitrogen is 1200 mol?
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A gas expands and does P-V work on the surroundings equal to 3.2x10^2 J. At the same time, it absorbs 111 J of heat from the surroundings. Calculate the change in energy of the gas.
Determine the angular speed of the minute hand and the hour hand of a clock(in radians per minute).
3 Zn(s) + 2 Bi3+(aq) → 3 Zn2+(aq) + 2 Bi(s) What is the standard reaction free energy? Faraday's constant is 96485 C/mol. Answer in units of kJ/mol
A person pulls on a 50 kg desk with a 200N force acting at a 30 degree angle above the horizontal. The desk does not budge. Draw a force diagram for the desk.
For the reaction Ag2S(s) > 2Ag+ (aq) + S2- (aq) what happens to the equilibrium position if ammonium sulfide is doubled ?
A 74 kg diver steps off a 14 m tower and drops from rest straight down into the water. If he comes to rest 4.4 m beneath the surface, determine the average resistance force exerted on him by the water.
A certain reaction has the following general form.Determine the value of the rate constant for this reaction. Calculate the half-life for this reaction.
A golfer can hit a golf ball a horizontal distance of over 300 m on a good drive. What maximum height will a 301.5 m drive reach if it is launched at an angle of 25.0 degrees to the ground?
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