Part A - Relating Rates at Which Products Appear and Reactants Disappear At a ce
ID: 890291 • Letter: P
Question
Part A - Relating Rates at Which Products Appear and Reactants Disappear
At a certain time in a reaction, substance A is disappearing at a rate of 4.0×102 M/s , substance B is appearing at a rate of 2.0×102 M/s , and substance C is appearing at a rate of 6.0×102 M/s . Which of the following could be the stoichiometry for the reaction being studied?
At a certain time in a reaction, substance m A is disappearing at a rate of 4.0 imes10^{-2}~ m M/s, substance m B is appearing at a rate of 2.0 imes10^{-2}~ m M/s, and substance m C is appearing at a rate of 6.0 imes10^{-2}~ m M/s. Which of the following could be the stoichiometry for the reaction being studied?
2 A B + 3 C 2 A + B 3 C A + 2 B 3 C 4 A 2 B + 3 C A 2 B + 3 CExplanation / Answer
substance A is disappearing at a rate of 4.0×102 M/s , substance B is appearing at a rate of 2.0×102 M/s , and substance C is appearing at a rate 6.0×102 M/s .
A is disappearing and B and C are appearing. So A should be on left side and B and C on right side. we see that 2A=B=3C
therefore correct answer is 2A=B+3C