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Consider a cylinder piston system (the diagram looks like a cup with a disc as the piston and it is resting on 2 stoppers that portrude from the sides of the cup to hold this piston disc as a certain mimimum height. There is water below and inside the cup/cylinder. The water volume is insignificant and unmarked, just a rough representative line. The piston disc is free to move up.) The piston, made of steel (density of steel is = to 7750 kg/cubic meter) has a diameter of 10 cm and a thickness of h=5cm. The piston is resting on stoppers. Liquid water in the cylinder is initially in equilibrium with it's vapour at tempurature of 12 degrees celsius. Assume no other gases are present. If heat is supplied, the tempurature of the water/vapour mix will rise. At what tempurature will the piston start moving up?
What is the molar mass of mixture A and mixture B? Show detailed work for first and best rating.
Gas was obtained by boiling liquid nitrogen stored in a 175.0 L tank. What volume ofN2 is released at 0.940 atm of pressure and 25 C from a tank full of liquid N2(d=0.808g/mol)
calculate the heat change at 100c in each of the following problems. indicate whether heat was absorbed or released.a.
If the final temperature was the same for both processes, what is the difference between for the two-step process and for the one-step process in joules
A solution of Na2CO3 is added dropwise to a solution that contains 1.14Ã-10âˆ'2 M Fe and 1.53Ã-10âˆ'2 M Cd . What concentration of CO3 is need to initiate precipitation?
Observe the d-orbitals on a central metal and use the character table to derive their irreducible representations (remember which column to look at). Circle any that are nonbonding for sigma interactions.
calculate the emf of a cell operating with the followingreaction at 25oc in which mno4- 0.010 m br- 0.010 m mn2 0.15
How many PopTarts® are needed to convert 1,000.0 g of water at 20.0 oC to steam at 100.0 oC? One PopTart is equal to 800,000 J of energy
calculate the energy levels of the -network in octatetraene c8h10 using the particle in the box model.a to calculate
A sample of 0.0020 mole of HCl is dissolved in water to make a2000-mL solution. Calculate the molarity of the HCl solution,the [H3O+], and the pH.
Without using equations, explain why Delta S for a liquid or solid is dominated by the temperature dependence of S as both P and T change.
Water (2290g ) is heated until it just begins to boil. If the water absorbs 4.99×10^5J of heat in the process, what was the initial temperature of the water.
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