1. A wire that is 6.0 m long at 30°C is found to increase in length by 2.25 cm when heated to 700°C. Compute the coefficient of linear expansion. B) Find the stress in the wire if it is stretched taut at 700 °C and cooled to 30°C without being allowed to contract. Y= 2.0 x 10P..
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- 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 gHi please help:A cylinder bore in an aluminum engine block has a diameter of 95.00 mm at 20.00 degrees Celsius A. What is the diameter of the bore when the engine operates at 120.0 degrees Celsius? Express answer using 4 significant digits and in mm. B. At what temperature is the diameter of the hole equal to 94.85mm? Express your answer using 2 significant figures.A. how much pressure is in a cube of side 3m when it contains two moles of gas and is kept at a temperature of 400K?
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- 1. 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 origina volume against the pressure at STP? Express your answer in L atm. 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)You are building a container out of polystyrene to hold a liquid at 80 °C.The surface area of this container is 1.2 m2.a. If energy is being added at a rate of 50 J/s (that is, 50 W), how thick mustthe container be to keep the outside temperature below 30 °C?b. What would be the required thickness if the container were instead madeout of nickel?A cylinder bore in an aluminum engine block has a diameter of 96 mm at 20 degrees Celsius. A.) What is the diameter of the bore when the engine operates at 119 degrees Celsius? B.) At what temperature is the diameter of the hole equal to 95.85 mm?
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