7. An insulated container has 40.0-g of water at 70.0°C. How much as at -5.00°C needs to be added to bring the system to 25.0°C?
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- 6. A cylinder contains 261 L of hydrogen gas (H2) at 0.0°C and a pressure of 10.0 atm. How much energy is required to raise the temperature of this gas to 16.7°C? Universal gas constant is 8.314 J/(mol·K). For H2 ,Cv = 20.4 J/(mol·K). in kJSuppose 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 Reading20. Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), and its temperature is 175 K. The other gas is neon (Ne). What is the temperature of the neon?
- A cook puts 8.20 g of water in a 2.00-L pressure cooker that is then warmed to 510°C. What is the pressure inside the container? (Assume room temperature is 20°C.) kPa2. A vertical Cylinder with a heavy piston contains air at 300 K. The initial pressure is 3.35*10^5 Pa, and the initial volume is 0.300 m^3. Take the molar mass air as 28.9 g/mol and assume Cv = 5R/2, R = 8.314 J/mol K a) Find the specific heat of air at constant volume in units of J/kg C b) Calculate the mass of the air in the cylinder c)Suppose the piston is held fixed. Find the energy input required to raise the temperature of the air to 691K.Vrms for nitric oxide gas (NO) at 16°C. 8. 555.6 m/s B. 534.9 m/s C. 424.7 m/s 593.7 m/s 490.2 m/s 482.7 m/s 1--1 273 cm³ of an ideal gas has an initial temperature of 0°C. The gas is heated at a constant p It will now occupy 9. A. 263 cm³ D. 278 cm³ Find ن ہو نے A. 8 16.00 DEE D. E. F. 7 N 14.01
- 2. An ideal gas absorbs 750 J of heat as it performs 625 J of work. What is the resulting change in temperature if there are 1.3 moles of the gas in the system?Q5A lead brick with a mass of 4.5 kg has an initial temperature of 33°C. If the lead brick is placed in 1.2 kg of 68°C water, what will the final temperature be? (cwater = 4186 J/kg°C, clead = 129 J/kg°C) A. 56°C B.37°C C.79°C D. 64°C
- A 0.0600-kg ice cube at -30.0°C is placed in 0.450 kg of 35.0°C water in a very well-insulated container. What is the final temperature in degrees Celsius? °C t..A 3.00-kg copper rod is 45.0 cm long at 24.8°C. If 45 000 J are transferred to the rod by heat, what is its change in = 387 J/kg °C and acopper -= 17.0 × 10-6/°C. ength? Ccopper a. 34.4 cm b. 0.0297 cm c. 0.133 cm d. 0.0445 cm e. More information is needed.8. A 25.2 grams of silver initially at 57.6°C is submerged into 84.3 grams of water at 26.9°C in an insulated container. What is the final temperature of both substances at thermal equilibrium?