Dry ice is allowed to sublime-convert from solid to gas
20 sample of dry ice is added to a 765 flask containing nitrogen gas at a temperature of 25.0 and a pressure of 715 . The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0 .
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Vehicles begin to arrive at a toll booth at 850 am with an arrival rate of x(t) = 4.1 + .01t (with t in min and x(t) in veh /min.) The toll booth opens at 9am and processes vehicles at a rate of 12 per minute throughout the day.
A 2.00 l sample of h2 at 70c and 725mmhg is compressed to 1750ml at 1.20atm what is the new temp? Calculate the c temperature at which 43.0g of oxygen occupies 1300. ml at 860 torr
The rate constant for a certain reaction is = 5.80×10-3 . If the initial reactant concentration was 0.350 , what will the concentration be after 2.00 minutes?
A coal fired power plant is served by 25 trucks. When loaded, each truck consists of one single-axle of 14 kips (the front axle), two tandem axles of 32 kips each (the middle axles) and one single axle of 22 kips (back axle).
A 385-L sample of this gas, measured at 22.6 °C and 739 mmHg, is burned at constant pressure in an excess of oxygen gas. How much heat, in kilojoules, is evolved in the combustion reaction?
A total of 2.00 rm mol of a compound is allowed to react in a foam coffee cup that contains 117 g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 ^circ rm C. What is the enthalpy of this reaction? Assume that n
Calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant.
Once the liquid nitrogen is evaporated, in time, the balloon re-inflates. Use kinetic theory to explain this sequence of events. The temperature of liquid nitrogen is -196 degrees celsius.
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