An experimenter adds 990 J of heat to 1.75 mol of an ideal gas to heat it from 10.0°C to 26.1 °Cat constant pressure. The gas does 234 J of work during the expansion. Part A Calculate the change in internal energy of the gas. Express your answer in joules. You may want to review (Page). For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Cooling ? your room. AU = J Submit Request Answer Part B Calculate y for the gas. Enter your answer numerically. ? Submit Request Answer

An experimenter adds 990 J of heat to 1.75 mol of an ideal gas to heat it from 10.0°C to 26.1 °Cat constant pressure. The gas does 234 J of work during the expansion. Part A Calculate the change in internal energy of the gas. Express your answer in joules. You may want to review (Page). For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Cooling ? your room. AU = J Submit Request Answer Part B Calculate y for the gas. Enter your answer numerically. ? Submit Request Answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Instruction: Answer the problems completely. Show your complete solution. Write legibly. A cylinder contains one mole of oxygen gas at a temperature of 27°C. The cylinder is provided with a frictionless piston, which maintains a constant pressure at 1 atm on the gas. The gas heated until its temperature increases at 127°C. b. How much work is done by the gas on the process? Note: oxygen gas cp=29.17 J/mol-K cV=20.85J/mol-K nitrogengas cp=29.07 J/mol-K cV=20.76J/mol-K
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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 V
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A crate of fruit with a mass of 40.0 kg and a specific heat capacity of 3550 J/(kg. K) slides 9.00 m down a ramp inclined at an angle of 40.0 degrees below the horizontal. Part A If the crate was at rest at the top of the incline and has a speed of 2.55 m/s at the bottom, how much work Wf was done on the crate by friction? Use 9.81 m/s² for the acceleration due to gravity and express your answer in joules. ► View Available Hint(s) Wf = -2140 J Submit Correct The frictional force opposes the motion of the crate, so the work done on the crate by friction must be a negative quantity. Part B Previous Answers If an amount of heat equal to the magnitude of the work done by friction is absorbed by the crate of fruit and the fruit reaches a uniform final temperature, what is its temperature change AT? ► View Available Hint(s) AT = ΑΣΦ W
A 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