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- 1. Five bicyclists are riding at speeds 2.6 m/s, 4.7 m/s, 5.4 m/s, 3.5 m/s, and 2.6 m/s. a) What is their average speed? V ave b) What is their rms speed? Vrms m/s m/sUsing AMM, solve for: a. Y. (mm) b. ӨЕ (гad) P= 128 kN E = 200 GPa, I= 3.125x10° mm* P (kN) kN/m 75 60 kN/m 2m 1m 3m 3m 90 kN.m A B EAgas at 473 Kand 43 atm has a molar volume 28 percent larger than that calculated from the perfect gas law. Calculate the compression factor under these conditions. O a. 15.0O O b. 1.28 Oc 228 O d. 3.28
- 1. The time required for peanut oil to flow between the two marks on the Ostwald pipette was 2,400 sec and 120 sec for water at 25°C. The ρ of peanut oil is 2.5 and that of water is 0.997. The η of water is 0.8904 cp at this temperature. What is the kinematic viscosity of peanut oil? a. 0.04 cstokes b. 17.86 cstokes c. 2.84 cstokes d. None of the choices e. 22.33 cstokes 2. Calculate the amount of sodium chloride to be added in a 100 mL solution of 1% drug solution with L iso value of 2.2 ˚C/M. MW = 216.32 g/mol using Freezing point depression method. a. 1.45 g b. 0.73 g c. 0.88 g d. 1.77 gHow do I caclucate for % diff B. Determination of μ₁ ( k accelerated motion) Table 3: Wood on Aluminum B. Determination of (accelerated motion) Table 3: Wood on Aluminum 130.15 g мь = mw 130.0 g = mb m₂ + mw = mh 0.14 0.13 Table 4: Felt on Aluminum m₂ = 130.15 g mw 130.0 g mb m₂ +mw a mh 0.10 0.10 fk 0.0467 % diff 0.458 0.440 0.0448 a μk 0.403 0.411 0.424 0.043 % diffOne Helium atom weighs 26.2 X 10-7 kg. How many He atoms would weigh 262 kg O a. 10° О. 107 Oc 10- O d. 10-7
- A. The time required for peanut oil to flow between the two marks on the Ostwald pipette was 2,400 sec and 120 sec for water at 25°C. The ρ of peanut oil is 2.5 and that of water is 0.997. The η of water is 0.8904 cp at this temperature. What is the relative viscosity of peanut oil with water? 50.15 62.70 0.12 7.97 None of the choices B. What is the boiling point of a solution prepared by adding 19.3 g of menthol (MW = 156 g/mole) to 0.0590 kg of chloroform? The boiling point of pure chloroform is 61.2 °C. The Kb for chloroform is 3.85 °C/m. 77 deg C. 69 deg C 53 deg C None of the choices 73 deg C18. If the initial state of a system is known, given by Y(t = 0) Y(t)= where and Wn = Cn= HPn= =A car engine moves a piston with a circular cross-section of 73000.002cm in diameter a distance of 3.2500.001cm to compress the gas in the cylinder. (a) By what amount is the gas decreased in volume in cubic centimeters? (b) Find the uncertainty in this volume.
- (a) In the deep space between galaxies, me density of atoms is as low as 106atoms/m3, and me temperature is a frigid 2.7 K. What is me pressure? (b) What volume (in m3) is occupied by 1 mol of gas? (c) If this volume is a cube, what is the length of its sides in kilometers?One mole of helium atoms has a mass of 4 grams. If a helium atom in a balloon has a kinetic energy of 1.666e-21 J, what is the speed of the helium atom? (The speed is much lower than the speed of light.) V = m/s Additional Materials O eBook1. A rubberized sphere contains carbon dioxide. If the initial radius of the sphere is 15cm: a. How much work is done if the carbon dioxide-filled sphere expanded to five times its original volume against the pressure at STP? Express your answer in Latm. b. Upon the expansion of the sphere, what is the kinetic energy of a single carbon dioxide molecule if it travels across the diameter and covers it in 30ms? Assume that the sphere contains one mole of carbon dioxide. Express your answer in J. c. How much power can all the molecules in this sphere generate after 30s? Assume that the sphere contains one mole of carbon dioxide and that all molecules have the same kinetic energy. Express your answer in W. (Use the KE obtained from the previous required)