1) A 280. g aluminum engine part at an initial temperature of 26.0 A 280. g alum
ID: 792118 • Letter: 1
Question
1) A 280. g aluminum engine part at an initial temperature of 26.0
A 280. g aluminum engine part at an initial temperature of 26.0 degree C absorbs 4.58 kJ of heat. What is the final temperature of the part (c of Al = 0.900 J/g·K)? Exactly one mole of nitrogen gas confined within a cylinder by a piston is heated from 0 degree C to 843 degree C at 1.00 atm. Calculate the work of expansion of the gas in joules (1 J = 9.87 x 10-3 atm·L). Assume all the energy is used to do work. What would be the temperature change if the gas were heated with the same amount of energy in a container of fixed volume? (Assume the specific heat capacity of N2 is 1.00 J/g·K.)Explanation / Answer
1) 44.17 degrees
2)7008.7 joules
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