Consider the following problem:
"Ammonia, NH3, is used as a fertilizer and as a refrigerant. What is the new pressure if 5 moles of ammonia with a volume of 750 mL at 1.50 atm is expanded to 7.50 L at constant temperature?"
In solving this with the ideal gas law, which R value will you use?
a. 8.31 L * kPa / K * mol
b. 0.0821 L * atm / K * mol
c. It doesn't matter which I choose for this problem, either of them will produce a correct answer.
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