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S2.Q1 AP CHM Summative
| Questions |
Answers |
| Write the equation for internal energy. |
ΔE = q + w |
| Write the equation for work. |
w = -PΔV |
| The letter q stands for __________ |
heat or enthalpy |
| An unknown gas expands in a container increasing the volume from 4.2 L to 8.5 L at a constant pressure of 920 mmHg. Calcuate the work done (in kJ) by the gas as it expands. (1 L*atm = 101.3 J) |
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| Using the answer found in #4 for work, calculate the internal energy of the system if the system absorbs 3.2 kJ of energy. |
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| Using the answer found in #5, calculate the internal energy of the system if the system does work against a vacuum. |
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| Using the specific heat capacity in J/g*K, what is the equation for heat. |
q = mcΔT |
