At what temperature will 14.0 g of #H_2# occupy a volume of 15.5L at a pressure of 204 kPa?
Of course, we need to find the appropriate gas constant.
This site gives me
Given this, we plug in the numbers:
We should get an answer in
The temperature is so low because there is a large molar quantity of dihydrogen. At this temperature we would anticipate some deviation from ideality. We are in no position to assess this.