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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro
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A 100 W lightbulb is placed in a cylinder equipped with a

Chapter 6, Problem 98E

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QUESTION:

A 100 W lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned on for 0.015 hour, and the assembly expands from an initial volume of 0.85 L to a final volume of 5.88 L against an external pressure of 1.0 atm. Use the wattage of the lightbulb and the time it is on to calculate \(\Delta E\) in joules (assume that the cylinder and lightbulb assembly is the system and assume two significant figures). Calculate w and q.

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QUESTION:

A 100 W lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned on for 0.015 hour, and the assembly expands from an initial volume of 0.85 L to a final volume of 5.88 L against an external pressure of 1.0 atm. Use the wattage of the lightbulb and the time it is on to calculate \(\Delta E\) in joules (assume that the cylinder and lightbulb assembly is the system and assume two significant figures). Calculate w and q.

ANSWER:

Problem 98 EA 100 W lightbulb is placed in a cylinder equipped with a moveable piston. The lightbulb isturned on for 0.015 hour, and the assembly expands from an initial volume of 0.85 L to afinal volume of 5.88 L against an external pressure of 1.0 atm. Use the wattage of thelightbulb and the time it is on to calculate in joules (assume that the cylinder andlightbulb assembly is the system and assume two significant figures). Calculate w and q Step by step solutionStep 1 of 3From the given,Initial volume,Final volume,External pressure,Wattage of the bulb =100 WTime =0.015 hour

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