The following reaction is found to be endothermic (δh > 0), the entropy change is negative, and therefore the gibbs free energy is positive at all temperatures. does this mean that this reaction could never be spontaneous? for the reaction below at 25 °c, δgºrxn = 326.4 kj. calculate the partial pressure of ozone, o3(g), needed to make this reaction spontaneous if the partial pressure of oxygen is 0.21 atm.

Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe

In the “analyzing the problem” step in the problem solving process, one should evaluate the causes, effects, and symptoms of the problem. select the best answer from the choices provided t f

What belongs in the areas marked x and y? x: the internal energy of a piston system increases as heat is added and rises to a cool area y: as thermal energy is added to a container, some of the energy is lost to the environment x: as thermal energy is added to a container, some of the energy is lost to the environment y: the internal energy of a piston system increases as heat is added and rises to a cool area x: a cold spoon placed in hot liquid gets warmer y: thermal energy is converted to light energy x: thermal energy is converted to light energy y: a cold spoon placed in hot liquid gets warmer