Explain the final temperature of the gas

Reference no: EM13126414

Thermodynamics questions

1. 5.30 moles of gas, initially at 25 degrees celcius and 5.00 atm pressure, was allowed to expand adiabatically( with no heat exchange between systen and surroundings) against a constant external pressure of 1.50 atm until the initial volume had trebled. The heat capacity of the gas was known to be 37.1 J/ degree celuius mol
Determine the following

1. Inital volume

2. The finial volume

3. w

4. q

5. change in Energy

6. The final temperature of the gas

2. Would it be feasible to make ethanol, C2H5OH, by the following reaction ( under standard conditions and 25 degrees C)

C2H4(g) + H2O(l) --------- C2H5OH(l)

3. Calculate the molar entropy of vaporization of water

change in Hf values (kJ/mol) : C2H4(g) = 52 H2O(l)= -286
H2O(g) = -242 C2H5OH(l) = -278

S Values(J/K mol): C2H4(g) = 220 H2O(l)= 70
C2H5OH(l) = 161

Boiling point H2O is 100 degrees celcuius

Reference no: EM13126414

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