A particular gas exerts a pressure of 637 mmHg.What is this pressure in units of bar? (1 atm = 760 mm Hg = 101.3 kPa = 1.013 bar) A) 4.78 $\times$ 10⁵ bar B) 4.91 $\times$ 10⁵ bar C) 645 bar D) 0.827 bar E) 0.849 bar

Question

Quizplus · Accepted Answer

To convert from mmHg to bar, we need to divide by 760 mmHg/atm, multiply by 1 atm/1.01325 bar, and simplify:
637 mmHg × 1 atm/760 mmHg × 1.01325 bar/atm = 0.8489 bar (rounded to four significant figures). Therefore, the best choice is E, 0.849 bar.

A Particular Gas Exerts a Pressure of 637 MmHg ×\times× 105 Bar B) 4

A Particular Gas Exerts a Pressure of 637 MmHg $\times$ 10⁵ Bar
B) 4