| Sections | |||
|---|---|---|---|
| Internal Energy | 22 mins | 0 completed | Learn |
| Calorimetry | 39 mins | 0 completed | Learn |
| Thermochemical Equation | 6 mins | 0 completed | Learn Summary |
| Hess's Law | 17 mins | 0 completed | Learn |
| Enthalpy of Formation | 13 mins | 0 completed | Learn Summary |
| End of Chapter 6 Problems | 52 mins | 0 completed | Learn |
| Additional Practice |
|---|
| Units of Energy |
| Endothermic & Exothermic Reactions |
| Additional Guides |
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| Enthalpy |
If the volume of a system increases from 10.0 L to 14.5 L against a constant external pressure of 1.00 atm, and absorbs 655 J of heat, what is the change in internal energy of the system (∆Esys)? (1 L∙atm = 101.3 J)
A) 199 J
B) 1111 J
C) 651 J
D) −1111 J
E) −199 J
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