All of the statements are true for spontaneous reactions except: a) the reaction rate is determined by the value of δg. b) if the enthalpy change is unfavorable, they occur at a high temperature. c) the value of δg is unaffected by a catalyst. d) the value of δg is less than zero. e)they are said to be exergonic.

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is