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A kitchen oven has an interior volume V of 0.12m3 . The initial pressure, P0, inside the oven equals the outside pressure of 1000 hPa. The air in the oven is then heated from an initial temperature T0 of 20 C to a baking temperature T1 of 175 C.
a) If the oven were perfectly sealed so that no air escaped, what would the pressure be inside the oven when it reached its final temperature?
b) If the door has an area of 0.25 m2, what would the net force acting on the door be if someone opened it without relieving the pressure first?
c) If the oven is not sealed (the normal case), air will leak out as the air expands from heating, so that inside pressure always equals the outside pressure. Assuming that the air leakage is one-way (no outside air enters the oven), what fraction of the original mass of air in the oven is lost due to expansion?
to determine the solubility productconstant ksp at 50oc forniio32 a chemist prepares a saturated solution of the salt
Use the ? - l?+ convention and the crossed arrow to show the direction of the expected polarity of the indicated bonds in the following compounds.
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.800 miles.
calculate the ph of a buffer that is 0.158 m hclo and 0.099 m naclo. the ka for hclo is 2.9 x
What do the density/potential plots demonstrate about bond order?
what is the wavelength of the photons emitted by hydrogen atoms when they undergo n=3 to n=2 transitions. Calculate in nanometers. In which region of the electromagnetic spectrum does this radiation occur? A) visible B) Ultraviolet C) Microwaves D..
A diamond is forever is one of the most successful advertising slogans of all time. But is it true? For the reaction shown below, calculate the standard free energy change at 298 K and determine whether or not a diamond is forever
which of the following aqueous solutions will freeze at the lowest temperature? a. 0.10 m KCl, b. 0.20 m C6H12O6 (glucose), c. 0.050 m AlCl3, d. 0.15 m SrBr2, e. all of the above freeze at the same temperature
Once the liquid has solidified, the system is in thermal equilibrium (no temperature change in the solid). What is the latent heat of fusion (kJ/kg) of the unknown liquid?
How many grams of urea (NH2)2CO must be added to 351 grams of water to give a solution with a vapor pressure of 2.73mmHg less than that of pure water 3 degrees celsius The vapor pressure of water at 30 degrees celsius is 31.8 mmHg
How could you synthesize ethyl-(E, E)-5-phenyl-2, 4-pentadieneoate via a Wittig reaction, using benzaldehyde as your carbonyl compound and any other necessary organic or inorganic reagents
An 85.0g sample of iron requires 954 J of heat to raise its temperature 25.0C. What is the specific heat of the iron?
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