The reaction between sodium metal and chlorine gas produces 822 kj of heat energy for every chlorine molecule consumed [2 na(s) + cl2(g) → 2 nacl(s)]. how much heat is released (in kj) if 2.972 g of na are consumed in the reaction?

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

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

In a series circuit the __ is the same at every point