a (a) Calculate a given o = 50° and c 8. %3D
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(a) Calculate a given o = 50° and c = 8.
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- A hot air balloon with diameter 20 m initially contains air at STP on a cool September morning. When the air is heated to 70 degree C , what mass of air is pushed out of the balloon? This is roughly the mass which can then be lifted by the balloon. (Potentially useful information: The molar mass of air is about 30 g/mol . The surface area and volume of a sphere are A = 4pi r 2 and V = 4 pi r 3 .)How long does it take a sucrose molecule in water at 25 oC to diffuse along a single dimension by (a) 10 mm. (b) 10 em, (d) 10 m from its starting point?A plastic boat whose bottom surface can be approximated as a 1.5-m-wide, 2-m-long flat surface is to move through water at 15°C at speeds up to 45 km/h. Determine the friction drag exerted on the boat by the water and the power needed to overcome it.
- and the ideal Gas Constant R=8.31 J/mol*k Needs Complete typed solution with 100/% accuracy.A cylinder that has a 45.0-cm radius and is 50.0 cm deep is filled with air at 19.5°C and 1.00 atm shown in figure (a). A 21.0-kg piston is now lowered into the cylinder, compressing the air trapped inside as it takes equilibrium height h; as shown in figure (b). Finally, a 21.5-kg dog stands on the piston, further compressing the air, which remains at 19.5°C as shown in figure (c). Ah 50.0 cm h; (a) How far down (Ah) does the piston move when the dog steps onto it? mm (b) To what temperature should the gas be warmed to raise the piston and the dog back to h,? °C Additional Materials 1 eBookan aluminum aerosol can will burst if the pressure inside reaches 210.0 psi. If the can initially contains an ideal gas at 459.5 kPa at 298.15 K, at what temperature (in K) will the can burst?
- A cylinder that has a 44.5-cm radius and is 50.0 cm deep is filled with air at 14.5°C and 1.00 atm shown in figure (a). A 16.0-kg piston is now lowered into the cylinder, compressing the air trapped inside as it takes equilibrium height hi as shown in figure (b). Finally, a 21.0-kg dog stands on the piston, further compressing the air, which remains at 14.5°C as shown in figure (c). (a) How far down (Δh) does the piston move when the dog steps onto it? (b) To what temperature should the gas be warmed to raise the piston and the dog back to hi?1. Systems A, B and C are gases with coordinates P, V ; P', V'; P",V" . When A and C are in thermal equilibrium, the equation PV – nbP- P"V" = 0 is found to be satisfied. When B and C are in thermal equilibrium the relation nB'P"V" P'V' – P"V" +: V' holds. The symbols n, b and B' are constants. What are the three functions which are equal to each other at thermal equilibrium and each of which is equal to 0, where Ois the empirical temperature. b. What is the relation expressing the thermal equilibrium between A and B? а.A tank contains argon at 600°C and 200 kPa gage. The argon is cooled in a process by heat transfer to the surroundings such that the argon reaches a final equilibrium state at 300°C. Determine the final gage pressure of the argon. Assume atmospheric pressure is 100 kPa.
- delta V = B ( linear expansion coefficient ) Vo ( delta T ) i think you will need to find the expansion of both the container and the liquid then subtrct the liquid height from the height of the cylider. then the rest is just repeating with dif #sA 4.00 L sample of a diatomic ideal gas with specific heat ratio 1.40, confined to a cylinder, is carried through a closed cycle. The gas is initially at 35 atm and at 300 K. First, its pressure is tripled under constant volume. Then, it expands adiabatically to its original pressure. Finally, the gas is compressed isobarically to its original volume (see the figure). What was the net work done (in kJ) on the gas for this cycle? (Hint: clockwise cycle causes negative work done) (Answer no decimal)32. (I) The oxygen molecule (O₂) has a diameter of 3 × 10-10 m. At a pressure of 10-8 Pa (in a vacuum system) and a temper- ature of 300 K find: (a) the number of molecules per cm³; (b) the mean free path.