Which of the following statements is false? a. with all else being equal, the higher the value of ea, the slower the reaction. b. as temperature increases, the activation energy decreases. c. a catalyst speeds up a reaction by providing an alternative mechanism with a lower activation energy d. for a typical reaction at room temperature with an activation energy of about 50 kj/mol, a 10 ºc rise in temperature leads to an approximate doubling of the rate. e. as temperature increases, the number of collisions between reactants also increases.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.