🔍 Key Concepts

• Relationship between bar and atmospheric pressure • Approximate value of 1 atmosphere in psi • Knowing that 1 bar ≈ 1 atmosphere

💭 Think About

• Think about what common sea‑level atmospheric pressure is usually given as in psi. • Compare that usual atmospheric pressure value with the choices and see which is closest. • Recall that 1 bar is very close to 1 atmosphere, not a small fraction of it.

✅ Before You Answer

• Is the option you’re considering in a realistic range for normal atmospheric pressure in psi? • Eliminate any choices that are obviously too small to represent atmospheric pressure. • Remember this is an approximate conversion, so look for a value that is close to the commonly quoted psi for 1 atmosphere.