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# Equilibrium and Change in Pressure

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NOBr in a 1.1 g quantity is placed in an evacuated 1 liter flask at -55 degrees C. The flask is warmed to 0 degrees C where the gaseous contents exert a pressure of 0.3 atm (all species are gaseous). At 25 degrees C, the equilibrium total pressure rises to 0.35 atm. What is Kp at 0 degrees C and 25 degrees C? What is delta H (assume enthalpy is temperature independent)?

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#### Solution Preview

This is a multi-step problem.

See given attachment for #'s 1-6. This shows an example of what how to do the problem. Replace their numbers with your own.

1) Write out balanced equation for given species.

2) ...

#### Solution Summary

This solution includes formula, calculations and explanation in an attached Word document. 320 words.

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