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Title: Please help Post by: vshiroky on Apr 20, 2014 Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to share with the local elementary school, and you must be sure that the combustion chamber is well insulated and will not harm (burn) the shooter. You spray the warm hairspray into the 3.50 L chamber on your gun. You seal the cap, then ignite it, and the resulting gas expands to 13.0 L as the potato is shot out. What is the final temperature, in Celsius, inside the combustion chamber? What is this temperature in Fahrenheit? [SHOW ALL WORK] :o :o :o
Title: Re: Please help Post by: estrella79 on Apr 20, 2014 For this I used Charles’s law which is basically V1 (volume 1) over Temp 1 equals Volume 2 over Temp 2. Which worked out to 4 liters over 32 C =17L/x or 136C
To convert 136 degrees C to Fahrenheit I multiplied 136x9/5 and I added 32 which gave me 276.8 degrees Fahrenheit. |