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- Unknown liquid h cm 95 cm WATER 50 cmEquations of Polytropic Process Definition, diagrams, equations, & sample problems Test Your Skills 14.1 5. Air undergoes a polytropic process such that n = 3.2. Calculate the polytropic specific heat of air in kJ/kg-K. Express your answer to 4 decimal places. Your answer Submit 曲= 14 15 16 17 18 19 20 21 22 23 24 25 26 A gas storage cylinder in an ordinary chemical laboratory measures 3.9 cm wide and 16. cm high. This is the label on it. olo Contents: N, gas Pressure: 7.93 atm If the cylinder is opened and the gas allowed to escape into a large empty plastic bag, what will be the final volume of nitrogen gas, including what's collected in the plastic bag and what's left over in the cylinder? Write your answer in liters. Round your answer to 2 significant digits. ?
- 1.3 A mixture of two liquids of equal volume is made, the one has a relative density of 0,8 and the other a density of 980 kg/m³. What will the weight of 2 500 litres be? 1.4 1.5 1.6 15 1.7 [21830 N] A solid block of stone with a relative density 4 is broken down and crushed to an average size of 20 mm. If the stone originally had a volume of 50 m³, how many truck loads with a volume of 2 m³, will it take to transport the crushed stone if 25 of the crushed stone has a mass of 80 kg. Has the relative density changed? How much? Why? [32 truck loads] Use table 1.4.2 to determine the kinematic viscosity of crude oil with a density of 855 kg/ m³ at temperatures of 20°C and 100°C. [9,357 x 10-6 m²/s; 3,275 x 10-6 m²/s] Air is used in a sensitive gyroscope to keep the metal bearing surfaces apart. Will the friction losses in the bearing be higher, lower or the same if the temperature of the bearing increases? A widely used S.I. unit for kinematic viscosity is centi- stoke cSt. One stoke is…Select the correct form(s) representing the total energy of a flowing fluid (energy transported by mass) on a unit-mass basis (where is the specific volume and is the velocity )_____Question 1) Calculate how much energy (J) is required to heat up a pot containing 500. g of water from 23.0 °C to its boiling point of 100.0 °C (specific heat of water = 4.184 J/g°C). Question 2) An unknown solid object with a mass of 35.0 g was heated to 100.0 °C and transferred to a calorimeter containing 50.0 g of water at 23.0 °C. After thermal equilibrium was reached, the temperature inside the calorimeter was 26.5 °C. Calculate the specific heat of the unknown solid (specific heat of water = 4.184 J/g°C).
- 25. The temperature of 2 moles of a monatomic gas increases from 20 °C to 300 °C. By how many joules does the internal energy of the gas change, if the temperature increase takes place: a) At constant volume b) At constant pressureA certain type of ship has two tanks in its engine. Each tank contains a different type of fuel. when the engine turns on, the same amount of energy is transferred out of both fuels. why did fuel 1 change pahse, but fuel 2 stayed the same. what happened to molecules of both fuelsThe graph below shows the pressure and volume for a sample of dry air carried out at two different constant temperatures. Volume (x 10-³ m ³) 2.5 N 1.5 1 0.5 0 50 M 100 150 Pressure (k Pa) 200 250 -T= 300 K -T200 K An isothermal change has to be carried out very slowly. Explain why this is the case. Use data from the graph and the ideal gas equation to calculate the number of moles of gas in the sample.
- Moving to another question will save this response. estion 46 What is the mass of a body in grams if it has a kinetic energy of 94.6N-m when moving at 2.25m/s? →→ Moving to another question will save this response. OLO LA. What is the mass in grams and weight in dynes and in gram-force of 12 oz. of salt? Local g is 9.55 m/s², 1 lb = 16 oz. 340 grams dynes,324829.93 dynes, 331 gram-forceCopra enters a dryer containing 60% water and 40% of solids leaves with 5% water and 95% solids. Find the weight of water removed based on each pound of original product. Answer: weight of water removed = 0.58 lb