1. The problem statement, all variables and given/known data A standing wave with a frequency of 1100 Hz in a column of methane at produces nodes that are 0.200 m apart. What is the value of γ for methane? (The molar mass of methane is 16.0 g/mol) 2. Relevant equations v = sqrt ( γRT/M) where R is 8.341, T = 20 °C and M = 16.0 g/mol. v=fλ for the standing wave 3. The attempt at a solution From what I understand we have to find the speed of the standing wave and equate it to the speed of methane and solve for γ but the problem is that they've not told us anything about the standing wave, as in how many nodes does it have or the length of the column or if it's open or closed? So how do we calculate the speed of the standing wave?