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Answer:
The change of state requires energy.
Explanation:
Instead of the energy changing the temperature the heat energy is used by changing its form.
Answer:
The candle took up all the oxygen under the glass
Explanation:
Carbon dioxide molecules are heavier than air. Because of this, they push the oxygen and other molecules in the air out of the way as they sink down over the flame and candle. When oxygen is pushed away from the wick, it can't react with the wax anymore.
<span>Use the combined gas law. It's (P1V1)/T1 = (P2V2)/T2.
P1 = 501 kPa, V1 = 5.2 L, T1 = 298 K*; P2 is your unknown, V2 = 7 L, T2 = 372 K*.
*In problems like this, you must always convert Celsius to Kelvin by adding 273 - or 273.15 if you want to be more specific. I used 273.
you should get 465.8387 kPa.</span>
