AccelePrep for the ACT Test 2nd Edition Student Text

C HAPTER 12 | T RY I T O UT ! S CIENCE P RACTICE • 227

1. Which of the following correctly describes 𒇔‹‡–• ͳ ƒ† ʹǫ Ǥ 𒇔‹‡– ͳ ‹• †‡•‹‰‡† –‘ •–—†› ‘›Ž‡ǯ• law, and gas temperature is the controlled ˜ƒ”‹ƒ„އǢ 𒇔‹‡– ʹ ‹• †‡•‹‰‡† –‘ study Charles’s law, and gas pressure is the controlled variable. Ǥ 𒇔‹‡– ͳ ‹• †‡•‹‰‡† –‘ •–—†› ‘›Ž‡ǯ• law, and gas pressure is the controlled ˜ƒ”‹ƒ„އǢ 𒇔‹‡– ʹ ‹• †‡•‹‰‡† –‘ •–—†› Charles’s law, and gas temperature is the controlled variable. Ǥ 𒇔‹‡– ͳ ‹• †‡•‹‰‡† –‘ •–—†› Šƒ”އ•ǯ• law, and gas volume is the controlled ˜ƒ”‹ƒ„އǢ 𒇔‹‡– ʹ ‹• †‡•‹‰‡† –‘ study Boyle’s law, and gas pressure is the controlled variable. Ǥ 𒇔‹‡– ͳ ‹• †‡•‹‰‡† –‘ •–—†› Šƒ”އ•ǯ• law, and gas pressure is the controlled ˜ƒ”‹ƒ„އǢ 𒇔‹‡– ʹ ‹• †‡•‹‰‡† –‘ •–—†› Boyle’s law, and gas temperature is the controlled variable. 2.  –Ї ‡š’‡”‹‡– †‡‘•–”ƒ–‹‰ ‘›Ž‡ǯ• Žƒ™ǡ the volume of gas at atmospheric pressure was: F. 32 mL. G. 64 mL. H. 100 mL. J. Cannot be determined from the given information 3.  𒇔‹‡– ʹǡ –Ї ˆ—…–‹‘ ‘ˆ –Ї…‘Ž— ‘ˆ ‘‹Ž ‹ –Ї ‡š’‡”‹‡–ƒŽ ƒ’’ƒ”ƒ–—• ‹• –‘ǣ A. measure the pressure of the air in the glass –—„‡ ƒ• ‹– ‡š’ƒ†• ‘”…‘–”ƒ…–•Ǥ B. measure the temperature of air in the glass –—„‡ ƒ• ‹– ‡š’ƒ†• ‘”…‘–”ƒ…–•Ǥ C. transmit pressure from the reservoir to the gas in the glass tube. D. transmit air to the gas in the glass tube.

Experiment 2 The students investigated the change in the volume of a gas at room temperature (294 K) at different pressures using the apparatus shown in Figure 3. A glass tube contained a pure nitrogen gas sample (a), and its volume (in mL) was read from the scale. A column of oil (c) transmitted pressure from the reservoir (b), and the pressure value was read on the gauge (d). Table 1 summarizes the data.

Table 1 Figure 3

Pressure, P (kPa)

Gas Volume, V (mL)

40 50 60 70 80 100 120 140 160 180 200

160 128 107 91 80 64 53 46 40 35 32

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