A blacksmith cools a 2.00 kg chunk of iron, initially at a temperature of 650.0°C, by trickling 15.0°C water over it. All the water boils away, and the iron ends up at a temperature of 1200°C For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Changes in both temperature and phase ▼ Part A How much water did the blacksmith trickle over the iron? Express your answer with the appropriate units. Mwater Submit μA Value Request Answer 5 Units 4 ?
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- Part A Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from P₁ = 2.7 atm to P2 = 1.7 atm. Then the gas expands at constant pressure, from a volume of V₁ = 5.9 L to V₂ = 9.6 L, where the temperature reaches its original value. See the figure ( Figure 1). Calculate the total work done by the gas in the process. Express your answer to two significant figures and include the appropriate units. ☐ о W = Value ? Units Figure P P₁ b P2 P 1 of 1 Submit Request Answer Part B Calculate the change in internal energy of the gas in the process. Express your answer with the appropriate units. με ? AU = Value Units V₁ V2 VCons The value of specific heat for copper is 390 J/kg · C°, for aluminun is 900 J/kg · C°, and for water is 4186 J/kg · C°. Part A What will be the equilibrium temperature when a 265 g block of copper at 255 °C is placed in a 145 g aluminum calorimeter cup containing 875 g of water at 15.0 °C? Express your answer using three significant figures. να ΑΣφ T = °C %3DA cylinder contains 0.250 mol of carbon dioxide (CO₂) gas at a temperature of 27.0°C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 1.00 atm on the gas. The gas is heated until its temperature increases to 127.0°C. Assume that the CO₂ may be treated as an ideal gas. Part A How much work is done by the gas in this process? Express your answer in joules. — ΑΣΦ W = Submit Part B On what is this work done? The work is done on the piston. The work is done on the cylinder. Submit Part C Request Answ AU = What is the change in internal energy of the gas? Express your answer in joules. ΑΣΦ Submit Request Answer Request Answer P Pearson W ? ? J J
- In a container of negligible mass, 0.300 kg of ice at an initial temperature of -25.0°C is mixed with a mass m of water that has an initial temperature of 80.0°C. No heat is lost to the surroundings. Part A If the final temperature of the system is 19.0°C, what is the mass m of the water that was initially at 80.0°C? Express your answer with the appropriate units. m = Submit μA Value Request Answer Units ? ReviewA large cylindrical tank contains 0.750 m³ of nitrogen gas at 22.0°C and 6.50x103 Pa (absolute pressure). The tank has a tight-fitting piston that allows the volume to be changed. Part A What will be the pressure if the volume is decreased to 0.530 m³ and the temperature is increased to 165°C? Express your answer in pascals. —| ΑΣΦ P = Submit Request Answer < Return to Assignment Provide Feedback ? PaPerfectly rigid containers each hold n moles of ideal gas, one being hydrogen (H₂) and other being neon (Ne). Part A If it takes 300 J of heat to increase the temperature of the hydrogen by 3.00° C, by how many degrees will the same amount of heat raise the temperature of the neon? Express your answer in degrees Celsius. ATNe = Submit VG ΑΣΦ Request Answer ? °C Q
- I am doing some practice problems to prepare for an exam and i cannot solve this problem, specifically part a but I would like to check this problem A piston cylinder device contains 0.8 kg of air initially at 100 kPa, 27 °C. The air is now compressed slowly in a polytropic process during which PV^1.3 =constant, until the volume reaches 1/2 its original volume. The system is then heated at constant pressure until the volume gets back to its original value. NOTE: THIS IS NOT A CYCLE. Data: Rair = 0.287 kJ/kg K; Cv=0.731 kJ/kg K; Cp=1.018 kJ/kgK. a) Determine the amounts AND directions of the Work and Heat(each in kJ) for each of the two processes. show all work used to get your values. b) Sketch the two processes on a P-v diagram, clearly showing all three state points and the two processes with their directions.provide the correct significance figure?One end of a 70-cm-long copper rod with a diameter of 2.0 cm is kept at 420 °C, and the other is immersed in water at 24 °C. Part A Calculate the heat conduction rate along the rod. Express your answer to two significant figures and include the appropriate units. t μA = Value Submit Units and Previous Answers Request Answer ?
- An ideal gas at 20°C consists of 2.2 x 1022 atoms. 3.2 J of thermal energy are removed from the gas. Part A What is the new temperature in °C? Express your answer in degrees Celsius. DA ΑΣφ T = °C Submit Request AnswerT5 please help me with the answer and full solutionPerfectly rigid containers each hold n moles of ideal gas, one being hydrogen (H₂) and other being neon (Ne). Part A If it takes 300 J of heat to increase the temperature of the hydrogen by 2.70°C, by how many degrees will the same amount of heat raise the temperature of the neon? Express your answer in degrees Celsius. ATNe= Submit 17 ΑΣΦ Request Answer ? °C