One mole of argon gas is held in a rigid container whose volume is 22.41 L at 273.15 K. 3.000 kJ of heat is added. CV =12.47 J mol−1 K−1 a) What is the initial pressure of the gas? b) What is qsys? c) What is wsys? d) What is the final temperature of the gas? e) What is the final pressure of the gas? f) What is ∆E?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.