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# How Nitrogen reacts to Heat

Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for full credit.

(10 points)

 Score
1. On a summer day, you take a road trip through Death Valley, California, in an antique car. You start out at a temperature of 21°C, but the temperature in Death Valley will reach a peak of 51°C. The tires on your car hold 15.6 L of nitrogen gas at a starting pressure of 249 kPa. The tires will burst when the internal pressure (Pb) reaches 269 kPa. Answer the following questions and show your work.
• How many moles of nitrogen gas are in each tire?
• What will the tire pressure be at peak temperature in Death Valley?
• Will the tires burst in Death Valley? Explain.
• If you must let nitrogen gas out of the tire before you go, to what pressure must you reduce the tires before you start your trip? (Assume no significant change in tire volume.)

(10 points)

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1. A balloon with a fixed amount of air is at room temperature. The balloon is placed in a pan of hot water.
• Describe what happens to the balloon in the hot water.
• Explain what happens to the pressure, volume, and temperature of the gas inside the balloon.
• Explain what happens to the air molecules inside the balloon.

(10 points)

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1. Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O).
• Write a balanced equation for this reaction.
• Assuming that all volume measurements occur at the same temperature and pressure, how many liters of oxygen will be required to completely burn 0.700 L of propane gas?
• Assuming that all volume measurements occur at the same temperature and pressure, how many liters of carbon dioxide gas will be produced in the reaction?
• Assuming that all volume measurements occur at the same temperature and pressure, how many liters of water vapor will be produced in the reaction