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Thermodynamics: Energy and the First LawPowerPoint Presentation

Thermodynamics: Energy and the First Law

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### Thermodynamics: Energy and the First Law

Eggplaced in boiling water

NEXUS/Physics Clicker Questions

Manstands still holding a weight at arm’s length.

NEXUS/Physics Clicker Questions

For this reaction H2(g) + (1/2)O2(g)→ H2O(g) ΔH = –286 kJ/mol. is pΔV

- positive,
- negative,
- zero

NEXUS/Physics Clicker Questions

For this reaction (occurring in a vessel at STP) H2(g) + (1/2)O2 (g)→ H2O(g) , ΔH = –286 kJ/mol. is the magnitude of the internal energy change (|ΔUint|)

- Greater than 286 kJ/mol?
- Less than 286 kJ/mol?
- Equal to 286 kJ/mol?
(Hint: Estimate the value of pΔV)

NEXUS/Physics Clicker Questions

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