If a reaction is exothermic, then which of the following statements is always true? if a reaction is exothermic, then which of the following statements is always true? the products have lower potential energy than the reactants. energy must be added for the reaction to proceed. the products have lower entropy (are more ordered) than the reactants. it occurs extremely quickly.

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i