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Question: please make it clear and circle the answers...

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A 49.096/51.0% by volume propane/n-butane mixture is cooled from 343°C to 141 C. Find the change in ethalpy of this mixture by following the steps below. Assume ideal behavior a) What is the average molar mass of the mixture? Number g mol What is the change in specific enthalpy of pure propane from 343°C to 141C? Number kJ/ mol c) What is the change in specific enthalpy of pure n-butane from 343°C to 141°C? Number kJ/ mol
c) What is the change in specific enthalpy of pure n-butane from 343 C to 141°C? Number kJ/ mol d) What is the change in specific enthalpy of the mixture from 343°C to 141°C? Number kJ/ mol e) What is the change in enthalpy of the mixture from 343 C to 141°C in kJ/kg? Number kJ/kg
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