Hot air at 80°c is blown over a 2-m by> on0 4-m flat surface at 30°c. if the average? convection heat transfer coefficient varies between 20 w/m2 °c and 100 w/m °c, draw a relation between the rate of heat transfer from the air to the 80°c air 30°c plate.(nm kw) and the convection heat transfer coefficient

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.