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chemistry
january 2020
23

Chemistry Questions and Answers January 23, 2020

Expert-verified solutions to help you succeed

Helium is heated at a constant volume from 350 kPaa and 38C to 220C. Determine the change in specific entropy.

A 40-L rigid tank contains air at 24C and 2 bar. Paddle work is added, 0.033 kN- m torque for 120 revolutions. If 11.5 kJ of heat is rejected, Determine a) final the final temperature; b) the change in entropy of the air.

For the system NH,OH CH,NH, CH,NH, NH,OH 95 95 5 5 the state of equilibrium in the system is described by the percentages given. Which of the species is the strongest acid in the system Select one a. NH,OH b. CH,NH, c. CH,NH, d. NH,OH

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