5. A closed gas system initially has pressure and volume of 0.905atm and 8090mL with the temperature unknown. If the same closed system has values of 1.30atm, 2150mL and 83.00C,
what was the initial temperature?

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)