How much work (in j) is required to expand the volume of a pump from 0.0 l to 2.3l against an external pressure of 1.0atm ?

What is the number of moles in 15.0 g ash3?

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains