I need help with these 2 chemistry problems, fairly simple just forgot. Due in 5 minutes please help thank you! (Hurry) <3

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:

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante