Ask Question
23 August, 03:23

A sample of gas in a cylinder is provided with 623.9 kJ of heat. This causes a piston to then compresses the gas by doing 432.9 kJ of work to the gas. What is the change in internal energy of the gas during this compression?

+5
Answers (1)
  1. 23 August, 05:24
    0
    1056.8 kJ

    Explanation:

    A sample of gas in a cylinder is provided with 623.9 kJ of heat. By convention, when the gas absorbs heat, it takes a positive sign, so Q = 623.9 kJ.

    A piston then compresses the gas by doing 432.9 kJ of work to the gas. We work is done on the gas, it takes a positive sign, so W = 432.9 kJ.

    The change in the internal energy (ΔU) is:

    ΔU = Q + W

    ΔU = 623.9 kJ + 432.9 kJ = 1056.8 kJ
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A sample of gas in a cylinder is provided with 623.9 kJ of heat. This causes a piston to then compresses the gas by doing 432.9 kJ of work ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers