Presentation on theme: "Warm up! What is the difference between Isothermal and Adiabatic? Describe the difference using the relationship between Internal energy( U), heat(Q),"— Presentation transcript:
Warm up! What is the difference between Isothermal and Adiabatic? Describe the difference using the relationship between Internal energy( U), heat(Q), work (W), temperature ( T) U = Q - W
Isothermal T 1 = T 2 P1V1 = P2V2 Δ T = 0 Δ U = 3/2 nR Δ T Δ U = 0 Q - W = 0 Q = W Heat input = work output ADABIATIC (isentropic) No heat exchange with the environment Q =0 Δ T ≠ 0 P1V1/T1 = P2V2/T2 Δ U = – W 3/2 nRT = - W - 3/2 nr Δ T = W Work output depends on negative change of internal energy
WHEN IS YOUR TEST? The Test is Next Thursday !!!
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