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WRITE YOUR ANSWER ON A PAPER AND SHOW YOUR SOLUTIONS.

Directions: Solve each problem involving ideal gas law. Write your complete solution on a separate sheet of yellow pad paper. Use two decimal places for your final answers. Note: Use your understanding in chemistry in order to solve some of the problems involving chemical compounds of pure substance.

4. Propane is an alkane that is commonly used as fuel in domestic and industrial processes. The propane gas undergoes isobaric process with a mass of 2 kgm and has an initial combustion temperature of 1960'C. Calculate the final temperature in degree Celsius if the resulting entropy is 15 J/K. Note that the ratio of specific heat of propane is 1.13