Exam 4-1.5 - 17. Ammonium nitrite undergoes decomposition...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Sample Exam 4-1 Dr. V. Williamson © Vickie M. Williamson 2007, All Rights Reserved 15. The value of Δ H° for the following reaction is -186 kJ. How many kJ of heat would be evolved from the reaction of 25 g of Cl 2 ? H 2 (g) + Cl 2 (g) 2HCl(g) A. 65 B. 5.3 x 10 2 C. 131 D. 47 E. 186 16 . A gas has a volume of 5.0 L at a certain pressure. How must the pressure be changed to double the volume of the gas at a constant temperature? A. The pressure must be halved. B. The pressure must be quadrupled. C. The pressure must be doubled. D. The pressure must be lowered, but the relationship is not linear. E. There is not enough information to decide
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 17. Ammonium nitrite undergoes decomposition to produce only gases as shown below. 35.0 g of NH 4 NO 2 (s) is decomposed at 525C and 1.5 atm. What is the TOTAL number of liters of gas formed? A. 15 B. 160 C. 72 D. 47 E. 22.4 18. A horizontal line on a heating curve (T vs. q) below might correspond to A. a pure solid increasing in temperature B. a solid/liquid mixture increasing in temperature C. a gas/liquid mixture increasing in temperature D. a liquid vaporizing E. a pure gas increasing in temperature 19. Which one of the following substances would be the most soluble in H 2 O? A. CC1 4 B. Cl 2 C. Br 2 D. CH 4 E. RbCl...
View Full Document

This note was uploaded on 02/18/2012 for the course CHEM 101 taught by Professor Williamson during the Fall '08 term at Texas A&M.

Ask a homework question - tutors are online