In redox half-reactions, a more positive standard reduction potential means i. the oxidized form has a higher affinity for electrons ii. the oxidized form has a lower affinity for electrons iii. the reduced form has a higher affinity for electrons iv. the greater the tendency for the oxidized form to accept electrons a. ii only b. ii, iii c. i, iv d. i only e. ii, iv

In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic