Determine the pressures (in mmHg) of the enclosed gas in (A), (B), and (C) if the atmospheric pressure is 735 mmHg. Assume that the gray liquid is mercury.

• A. (A) P_gas = 1,090 mmHg
  (B) P_gas = 450 mmHg
  (C) P_gas = 435 mmHg
• B. (A) P_gas = 1,090 mmHg
  (B) P_gas = 1,185 mmHg
  (C) P_gas = 1,035 mmHg
• C. (A) P_gas = 380 mmHg
  (B) P_gas = 285 mmHg
  (C) P_gas = 435 mmHg
• D. (A) P_gas = 355 mmHg
  (B) P_gas = 450 mmHg
  (C) P_gas = 300 mmHg

Answer: (A)