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Homework 7

# Homework 7 - huynh(hph268 – Homework 7 – Sutcliffe...

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Unformatted text preview: huynh (hph268) – Homework 7 – Sutcliffe – (52380) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A gas has a pressure of 4 . 24783 atm when its volume is 2 . 61 L. What will the pressure be when the volume is changed to 1 . 78903 L, assuming constant temperature? Express the final pressure in torr. Answer in units of torr. 002 10.0 points For an ideal gas, pressure has what relation- ship to volume provided only pressure and volume are allowed to change? 1. unrelated 2. inversely proportional 3. proportional 4. equal 003 10.0 points Which of the following is a true statement about a fixed amount of ideal gas at constant pressure? 1. If a sample of gas is heated from 0 ◦ C to 273 ◦ C, the volume will double. 2. If a sample of gas is heated from 100 ◦ C to 200 ◦ C, the volume will decrease by a factor of two. 3. If a sample of gas is cooled from 400 ◦ C to 200 ◦ C, the volume will decrease by a factor of two. 004 10.0 points A sample of a gas occupies 1560 mL at- 40 . 2 ◦ C and 740 torr. What volume would it occupy at the same pressure and 435 ◦ C? Answer in units of mL. 005 10.0 points A 787 mL gas sample at STP is compressed to a volume of 226 mL, and the temperature is increased to 29 ◦ C. What is the new pressure of the gas in Pa?...
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Homework 7 - huynh(hph268 – Homework 7 – Sutcliffe...

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