A solid block of a certain material has a volume V₁ at 20° C. The volume of the block increases by 1.009% when the temperature increases to Tf. The coefficient of volume expansion is 3 =170.86 μ (+/-). temperature Tf (in °C). Determine the final
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- (a) Find the density in SI units of air at a pressure of 1.00 atm and a temperature of 20 , assuming that air is 78% N2, 21% O2, and 1% Ar, (b) Find the density of the atmosphere on Venus, assuming that it's 96% CO2 and 4% N2, with a temperature of 737 K and a pressure of 92.0 atm.A cylindrical metal boiler of radius 10 cm and thickness 3.14 cm is filled with water and placed on an electric heater. If the water boils at the rate of 50 g s', estimate the temperature of the fila- ment. Thermal conductivity of metal 102 w m K- and latent heat of vaporisation = 2.26 x 10° J g'. = 1.13 × %3DA cylinder bore in an aluminum engine block has a diameter of96.00 mm at 20.00 °C. (a) What is the diameter of the bore whenthe engine operates at 119.0 °C? (b) At what temperature is thediameter of the hole equal to 95.85 mm?
- Hi 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.1.1 m3. The mass of the balloon 3. Consider a hot-air balloon with fixed volume VB envelope, whose volume is to be neglected in comparison to VB, is mL balloon shall be started, where the external air temperature is T = 20°C and the normal 0.187 kg. TheA boy was rushed to the hospital for a medical attention as a result of his body becoming very hot. When his temperature was checked, the thermometer read 39OC. This temperature then reduced by 3OC after he was administered with of a first aid. Calculate the temperature of the boy after the administration of the first aid in degree Fahrenheit and degree Rankin.
- At 22 °C, the radius of a solid aluminum sphere is 7 cm.A, at what temperature will the volume of the sphere have increased by 3%? B, What is the increase in the sphere’s radius if it is heated to 250 °C? Assume α = 22.2×10-6 K-1and β=66.6×10-6 K-1 .An aluminum measuring rod, which is correct at 5oC, measures a certain distance as 97.46 cm at 51oC. What is the correct length of the steel at the elevated temperature, give a coefficient of linear expansion for the aluminum rod of 22 x 10-6 oC-1. Express your answer in cm rounded to two decimal places (X.XX).An automobile tire has a volume of 0.0185 m3. At a temperatureof 294 K the absolute pressure in the tire is 212 kPa. How many molesof air must be pumped into the tire to increase its pressure to 252 kPa,given that the temperature and volume of the tire remain constant?
- coefficient of thermal expansion for aluminum is 2.34*10-5. For copper, it is 1.76*10-5. At 30 degrees celsius the radius of an aluminum ring is 4.9966. The radius of a copper ball is 5.0041. What must the temp be for ball to pass through ring?| The sublimation of zinc (mass per mole = 0.0654 kg/mol) takes place at a temperature of 6.00 × 10² K, and the latent heat of sub- limation is 1.99 × 10º J/kg. The pressure remains constant during the sublimation. Assume that the zine vapor can be treated as a monatomie ideal gas and that the volume of solid zinc is negligible compared to the corresponding vapor. Concepts: (i) What is sublimation, and what is the latent heat of sublimation? (ii) When a solid phase changes to a gas phase, does the volume of the material increase or decrease, and by how much? (iii) As the material changes from a solid to a gas, does it do work on the environment, or does the environment do work on it? How much work is involved? (iv) In this problem we begin with heat Q and realize that it is used for two purposes: First, it makes the solid change into a gas, which entails a change AU in the internal energy of the material, AU = Ugus - Usolid. Second, it allows the expanding material to do work W on the…Suppose a gas-filled incandescent light bulb is manufactured to have atmospheric pressure in it at 20.0°C. Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 71.5°C and neglecting any change in volume due to thermal expansion or gas leaks. atm Additional Materials Reading