A sealed 89-m3 tank is filled with 6000 moles of oxygen gas (O2 ) ...

[MirandaLo]

A sealed 89-m3 tank is filled with 6000 moles of oxygen gas (O2 ) at an initial temperature of 270 K. The gas is heated to a final temperature of 350 K.
 
  The ATOMIC mass of oxygen is 16.0 g/mol, and the ideal gas constant is R = 8.314 J/mol  K = 0.0821 L  atm/mol  K. The initial pressure of the gas is closest to
  A) 0.15 MPa.
  B) 0.17 MPa.
  C) 0.19 MPa.
  D) 0.13 MPa.
  E) 0.11 MPa.

Question 2

The current through two identical light bulbs connected in series is 0.25 A. The voltage across both bulbs is 110 V. The resistance of a single light bulb is
 
  A) 22 ohms.
  B) 44 ohms.
  C) 220 ohms.
  D) 440 ohms.
  E) none of the above

[sierrahalpin]

Answer to Question 1

A

Answer to Question 2

Answer: C

[MirandaLo]

Gracias!

[alvinum]

Excellent