Astudent compares the fundamental resonating frequencies of two equal length pipes. pipe a is open on both ends. pipe b is open on one end and closed on the other. how does the frequency of pipe a measured at fa compare to the frequency of pipe b measured at fb?

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.