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Two identical bubbles of gas form at the bottom of a lake, then rise to the surface. Because the pressure is much lower at the surface than at the bottom, both bubbles expand as they rise. However, bubble A rises very quickly, so that no heat is exchanged between it and the water. Meanwhile, bubble B rises slowly (impeded by a tangle of seaweed), so that it always remains in thermal equilibrium with the water (which has the same temperature everywhere). Which of the two bubbles is larger by the time they reach the surface? Explain your reasoning fully.
In your house (elevation 950ft above sea level) you have a barometer that registers inches of mercury. On an average day in january, the pressure was 0.966 bar on 700 ft elevation
The work function of silver is 7.59x10^-19J. what is the longest wavelength of electromagnetic radiation that can eject an electron from the surface of a piece of silver
consider the following reaction3caco3 2fepo4 ca3po42 fe2co33a which of the following reagents is the limiting
Advantages and disadvantages of using Alternative Fuel and Would you consider buying one of these in the future? Why or Why Not and Why do you think there are not more of these vehicles in use?
what is the temperature change if 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? it is
There is a low concentration of H+ and a high concentration of OH- D. the pH only tells us about H+; it tells us noting about the amount of OH-
cah2 + 2h2o --> 2h2 + ca(oh)2, how many grams of calcium hydride are needed to produce 1.0L of hydrogen gas, collected over water at 26 celsius and 760 torr total pressure.
A buffer is ready by mixing 200mL of 0.450 M HCL and 0.500 L of 0.400 M sodium acetate. Explain what is the pH Ka of CH3COOH = 1.8 x 10-5
it is given that the half-life of 137ce 30. years. determine how many grams will remain in 150 years if we have 150.000
For a building with a greenroof that is 760x650 feet, determine the weight of water ( in lbs) that would be on the roof when the greenroof is saturated. Liquid water is 62.4 pounds/cu-foot
Mount Kilimanjaro has an altitude of 19350 ft. water boils at 81.0 c atop Mount Kilimanjaro. Explain what is the normal atmospheric pressure on the mountain
calculate the ph of each solution given the following h3oor oh- values. express your answer using two decimal
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