Question

Sensors detect the concentration of mercaptan molecules in natural gas at various distances from a leaking source. At which location will a sensor detect the highest concentration of mercaptan?

A. three meters behind the source

B. two meters in front of the source

C. two meters behind the source

D. one meter in front of the source

Answer 1

The sensor will detect the highest concentration of mercaptan at the location that is closest to the source, which is two meters in front of the source.

Step-by-step explanation:

The concentration of mercaptan molecules in natural gas is expected to be highest at the source of the leak. This is because the mercaptan molecules are emitted directly from the source and their concentration gradually decreases as you move further away.

If we consider the given options, the sensor will detect the highest concentration of mercaptan at the location that is closest to the source. Therefore, the answer is Option B, two meters in front of the source.

Answer 2

Answer: D. one meter in front of the source

Mercaptan is a foul smelling gas which is added to the natural gas such as butane or propane. As, the natural gas is colorless and odorless, the mercaptan is added to detect the gas. It is added to detect the leakage of the natural gas. The gas sensors are able to detect the flow or leakage of gas at various locations but the maximum concentration of the natural gas containing the mercaptan can be found in one meter in front of the source. The source exhibit maximum concentration of the natural gas along with the mercaptan.