6.113 A rigid, insulated tank whose volume is 10 L is initially evacuated. A pinhole leak develops and air from the surroundings at 1 bar, 258C enters the tank until the pressure in the tank becomes 1 bar. Assuming the ideal gas model with k 5 1.4 for the air, determine (a) the final temperature in the tank, in 8C, (b) the amount of air that leaks into the tank, in g, and (c) the amount entropy produced, in J/K.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.