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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.

1. A certain gas has a gage pressure of 20 atm at 100 C. Calculate the temperature in "C if the gage pressure of the gas becomes 15 kgf/cm? at isometric process