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Gas Clicker quiz

Gas Clicker quiz.

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Gas Clicker quiz

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  1. Gas Clicker quiz

  2. Which of the possible suggestions below best describes how a gas produces pressure in a container?A) A gas particle moves in straight lines.B) The gas particles collide with the walls of the container.C) The particles of the gas vibrate .D) The particles of the gas attract each other.

  3. Gas Particles collide with the walls of the container, creating pressure. • Answer: B

  4. Standard • Pressure = • 1.0 atm • 101.3 kPa • 760 mm Hg

  5. CONVERT A PRESSURE OF 100.0 KPA TO ATMA) 1.00 ATMB) 1.01 ATMC) 0.987 ATMD) 2.24 ATM

  6. Answer: C • 100.0 kPa = 0.987 ATM

  7. BOYLE’S LAW • PRESSURE IS DIRECTLY PROPORTIONAL TO VOLUME at a constant temperature. • PRESSURE IS INVERSELY PROPORTIONAL TO VOLUME at a constant temperature • PRESSURE DOES NOT CHANGE WHEN THE VOLUME CHANGES • ALL OF THE ABOVE

  8. WHAT IS THE SHAPE OF A PV CURVE AND ARE PRESSURE AND VOLUME INVERSELY OR DIRECTLY PROPORTIONAL TO EACH OTHER?A) STRAIGHT LINE, DIRECT PROPORTIONB) A HYPERBOLA, INVERSE PROPORTIONC) STRAIGHT LINE, INVERSED) A HYPERBOLA, DIRECT

  9. BOYLE’S LAW – The Graph is a hyperbola Answer B

  10. To increase the volume of a gas at constant temperature from 2.00 liters to 6.00 liters, it is necessary to change the pressure from 101.3 kPa to:A) 16.2 kPa B) 608 kPaC) 33.8 kPa D) 304 kPa Answer: C

  11. IF YOUR LUNGS HOLD 6 LITERS OF GAS AT 3.00 ATM OF PRESSURE AND 25 C, CALCULATE THE VOLUME OF THE LUNGS AT 1.00 ATM AND 25 C.A) 2 LITERSB) 6 LITERSC) 18 LITERSD) 22.4 LITERS Answer: C

  12. The temperature of a gas is aN indication of:A) The average kinetic energy of the gas moleculesB) The chemical energy of the gas moleculesC) The total energy of the gas moleculeSD) The amount of space between the gas molecules Answer: A

  13. The lowest "possible" temperature isA) 0 C B) -373 CC) -273 C D) -100 C Answer: C ABSOLUTE ZERO!

  14. CONVERT 25 C TO ABSOLUTE TEMPERATUREA) 273 KB) 298 KC) 25 KD) -273 K ANSWER: B

  15. According to Jacques Charles, the guy who determined "Charles Law", the volume and the temperature of a gas are: • A) directly proportional • B) inversely proportional • C) not related • D) equal Answer: A in Kelvin temperature

  16. The volume of a gas is directly proportional to its absolute temperature.

  17. DIRECT PROPORTION Between Absolute Temperature and Volume

  18. To change the volume of a gas at constant pressure from 2.0 liters to 4.0 liters, it is necessary to change the kelvin temperature from 200 K toA) 400 K B) 300 K C) 100 K D) 0 K Answer: A

  19. When a gas is heated at a constant VOLUME, the Pressure of the gas increases because the molecules of the gas:a) expand and move fasterB) move faster, hitting the container with a greater forceC) repel each other with a greater forceD) become more active Answer: B Pressure is directly proportional to tts absolute temperature.

  20. Real gases tend to behave like ideal gases AT:A) low temperature and low pressures B) high temperature and low pressuresC) low temperatures and high pressures D) high temperature and HIGH pressures Answer: B. When a gas is at a low temperature and pressure, it condenses into a liquid.

  21. For an ideal gas, which variables are inversely proportional to each other (if all other factors remain constant?) • P, V B) P, T • C) V, T D) n, P Answer: A

  22. At STP conditions, 2.0 liters of hydrogen gas has the same number of particles as __________ liter(s) of helium gas.A) 2.5 B) 2.0 C) 4.0 D) 1.0AVOGADRO’S PRINCIPLE: IF TWO GASES HAVE THE SAME VOLUME, TEMPERATURE, AND PRESSURE, THEN THEY WILL HAVE THE SAME NUMBER OF PARTICLES. Answer: B

  23. Equal volumes of ammonia and nitrogen gas at the same temperature and pressure will have the same A. density B. number of atomsC. number of moleculesD. percentage of nitrogen Answer: C

  24. Calculate the density of carbon dioxide, CO2, gas at STP Conditions. NOTE: DENSITY = MASS/VOLUMEA) 1.96 GRAMS/LITERB) 0.51 GRAMS/LITERC) 22.4 GRAMS/LITERD) 44.0 GRAMS/LITER Answer: A

  25. Nitrogen, N2, and hydrogen, H2, gases react to produce ammonia gas, NH3. If 2.00 liters of nitrogen ARE MIXED with 4.00 liters of HYDROGEN gas at STP, determine the number of liters of ammonia gas that could be produced. N2(G) + 3 H2(G)  2 NH3(g)A) 1.33 LITERS B) 2.00 LITERSC) 4.00 LITERS D) 2.67 LITERS Answer: D

  26. AVOGADRO’S LAW OF COMBINING GAS VOLUMES: Gases at the same temperature and pressure combine in whole number ratios.

  27. Solid potassium chlorate, KClO3, can be heated and decomposed into potassium chloride and oxygen gas. WRITE THE BALANCED CHEMICAL EQUATION • KCLO3 KCL + 3 O2 • 2 KCLO3 2 KCL + 3 O2 • KCLO3 KCL + O2 • KCLO3 KCL + 3 O Answer: B

  28. CALCULATE THE VOLUME OF OXYGEN GAS PRODUCED FROM THE DECOMPOSITION OF 1.22 GRAMS OF KCLO3 AT STP CONDITIONS(FIND MOLES OF KCLO3 FIRST, THEN FIND MOLES OF OXYGEN, THEN FIND VOLUME AT STP CONDITIONS)A) 0.336 LITERS B) 22.4 LITERSC) 2.24 LITERS D) 3.20 LITERS Answer: A

  29. CALCULATE THE VOLUME OF 3.20 GRAMS OF OXYGEN GAS, O2 AT 1.00 ATM AND 25.0 C.USE THE IDEAL GAS LAWA) 3.20 LITERSB) 2.24 LITERSC) 2.44 LITERSD) 4.88 LITERS Answer: C

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