Science Periodical Exam Grade 10

Multiple Choice Choose the best answer. Key is highlighted in bold characters. Which of the following is a wrong statement about the gas laws A)Breathing illustrates Boyles law. B) Charles law illustrates that the volume of gas expands when temperature becomes higher. C) Avogadros law illustrates that the volume of gas is proportional to its mole number or say its quantity or amount. D) Gay-Lussacs law illustrates that the pressure of gas is proportion to its temperature. E) All of the above are correct statements. Hint Comprehensive definition p.p. 124-135. When 6.0 mol of oxygen are confined in a 36-L vessel at 196oC, the pressure is 8 atm. What is the new pressure for oxygen expands at constant temperature to fill 48 L A) 6 atm B) 8 atm C) 12 atm D) 16 atm Hint p.p. 126-129 example problem 5.2 5.3. Boyles law P1V1 P2V2. A gas sample of argon, maintained at constant temperature, occupies a volume of 500 L at 4.00 atm. What is the new volume if the pressure were charged to 8 atm A)500 L B) 250 L C) 125 L D) 62.5 L Hint p.p. 126-129 example problem 5.2 5.3. Boyles law P1V1 P2V2. What