What is the effect on the volume of 1 mol of gas if the pressure changes from 2 atm to 101 kpa while the initial temperature is 305 k and the final temperature is 32 °c? (1 atm = 101 kpa).

On a test the graders have a mean of 77 and a standard deviation of 8. if we can approximate the distribution of these graders by a number distribution what percent of the students. a) scores higher than 77? b) should pass the test (grades > 60)? c) should fail the test (grades < 60)?