Chemistry, 16.07.2020 20:01 mbonilla073
What is the freezing point (in degrees Celcius) of 3.75 kg of water if it contains 189.9 g of C a B r 2?
Answers: 3
Chemistry, 21.06.2019 22:30
Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is Äc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.
Answers: 1
Chemistry, 22.06.2019 07:30
Using data from seismic waves, geologists have learned that earthâs interior is made up of several
Answers: 1
Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0Âșc and rises to an altitude where its volume is twenty times the original volume and its temperature is â 50.0Âșc ?
Answers: 2
What is the freezing point (in degrees Celcius) of 3.75 kg of water if it contains 189.9 g of C a B...
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