One hundred grams of aluminum (c = 0.22 cal/g° C) at 100° C is mixed with 100 g of water at 10 ° C. What is the final temperature of the %3D mixture ?
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- (a) What is the gauge pressure in a 25.0 cc car tire containing 3.60 mol of gas in a 30.0-L volume? (b) What will its gauge pressure be if you add 1.00 L of gas originally at atmospheric pressure and 25.0 ? Assume the temperature remains at 25.0 cc and the volume remains constant.A hollow aluminum cylinder 20.0 cm deep has an internal capacity of 2.000 L at 20.0C. It is completely filled with turpentine at 20.0C. The turpentine and the aluminum cylinder are then slowly warmed together to 80.0C. (a) How much turpentine overflows? (b) What is the volume of the turpentine remaining in the cylinder at 80.0C? (c) If the combination with this amount of turpentine is then cooled back to 20.0C, how far below the cylinders rim does the turpentines surface recede?(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.
- An iron bucket has a mass of 2 kg and contains 8 kg of water. If the initial temperatureis 6 ° C, to what temp. will the bucket and water be raised by the addition of 3 kg ofwater at 95° C.s.h.c. iron = 500 J/kg° C,s.h.c. water = 4190 J/kg° CWhat is the specific heat c of a 0.500 kg metal sample that rises 4.80 °C when 305 J of heat is added to it? O 127 J/kg.K O 108 J/kg.K O 116 J/kg.K O 101 J/kg.K O 171 J/kg.KA 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is contained in a 0.200-kg aluminum calorimeter cup. The final temperature of the system is 30.5 Celsius. What is the specific heat of the metal alloy in J/Kg.Celsius? O 497 O 74.60 50.00 O 3316 994
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- Hot water (cp-4.18 kJ/kg.K, m= 2.2 kg/min) flows inside a tube (inner diameter = 9 mm, Length = 93 cm, thickness =1.0 mm, kb = 40 W/m.K), if the heat flux on the tube outer surface is 325 kW/m. What is the temperature drop of water (C)? tube Select one: O A. 66.26 O B. 71.79 O C. 69.97 O D. 64.43 O E. 68.15When lead is melted at atmospheric pressure, the melting point is 327.0 °C, the density decreases from 1.101 × 104 to 1.065 × 104 kg/m³, and the latent heat is 24.5 kJ/kg. Estimate the melting point of lead, T, at 41 atm. P - Select one: a. 327.164 °C b. 326.836°C O c. 327.096 °C O d. 326.409 °C⦁ A 5.0-L sample of sulfur hexafluoride (SF6) is stored at a temperature of 250.0 K and a pressure of67.0 Pa. If the pressure is decreased to 60.0 Pa, what will the new temperature be? ⦁ Imagine that you fill a balloon at sea level (1.0 atm) with 18 L of air. You are taking the balloon to Denver, Colorado, for a birthday party. Colorado is the “Mile High State,” and Denver has an air pressure of 0.85 atm. When you get to the party, what will the volume of the balloon be?