Compressed air is used to inflate a partially collapsed bounce house from 204 L to 16100 Lagainst a constant atmospheric pressure of 0.995 atm ✓1st attempt Part 1 Calculate the P-V work done by the air on the surroundings in L.atm. L• atm Part 2 Calculate the P-V work done by the air on the surroundings in kJ. kJ See Periodic Table Q See H See Hi

Compressed air is used to inflate a partially collapsed bounce house from 204 L to 16100 Lagainst a constant atmospheric pressure of 0.995 atm ✓1st attempt Part 1 Calculate the P-V work done by the air on the surroundings in L.atm. L• atm Part 2 Calculate the P-V work done by the air on the surroundings in kJ. kJ See Periodic Table Q See H See Hi

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1
For a constant-pressure expansion of a gas, the work done by the system (-w) is equal to the pressure (P) multiplied by the change in volume (∆V) of the gas. Calculate the work done by a gas when it volume expands from 3.0 L to 8.0 L under atmospheric pressure. How much heat did it absorb if its energy did not change (i.e., ∆E =0)? Note : 1 L∙atm = 101.325 J
Use the following 2 thermochemical equations: 2NO, → N2 + 20, AH= -677 kJ N2 + 20, → N,0, AH= 9.7 kJ Determine the change in enthalpy for the following reaction: 2NO, > N,O, Select one: a. -77.4 kJ b. -58.0 kJ C. +77.4 kJ d. +58.0 kJ
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4th attempt on this problem. previous answers were -2812.6 -2812.57 13.87
4
A chemical reaction occurs inside a cylinder with a movable piston at constant pressure of 0.972 atm. The chemical reaction releases 431.6 J of heat to the surroundings. Before the reaction occurs the volume of the cylinder is 3.38 L. During the reaction the cylinder is forced down to a final volume of 0.94 L. Calculate the change in internal energy for this process (in joules). _________ J
4. Bomb calorimetry was performed to determine the calorific value for a sample of edible oil. The following data were obtained and recorded: mass of the oil sample heat capacity of the calorimeter volume of water in the calorimeter = 1.75 g = 1.3 kJ/ºC = 950 ml initial temperature final temperature = 25.8 °C = 30.3 °C Compute for the calorific value of the sample in Cal/g.
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uestion 22 of 41 > If a system has 225 kcal of work done to it, and releases 5.00 × 10² kJ of heat into its surroundings, what is the change in internal energy (AE or AU) of the system? kJ AE = étv MacBook Air DII 80 888 F12 F10 F11 F7 FB F9
Calculate the work done ( in joules) when a perfect gas in a piston chamber expands from 2.00 L to a final volume of 5.50 L against a constant opposing pressure of 1.75 atm. Answer in 3 SF
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