One mole of a gas obeys the van der Waals equation of state: (P+9) (v - b) =RT, and its molar internal energy is given by u=cT where a, b, c, and R are constants. Calculate the molar heat capacities cv and Cp

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: