### Calculate k(specific rate constant)? Yahoo Answers

Sep 14, 2010 · the equation you have - kobs = k [][] is an equation for the rate of reaction. and based on the exponents, it is a second order reaction. therefore ln[] vs time would not be the appropriate graph. it should be 1/[] vs time. (and by [] i mean concentration of reactant). k is the rate constant, but i don't know where kobs is coming from.

### Can the rate constant k be a negative value? Yahoo Answers

Apr 06, 2012 · rate of reaction in terms of reactants = - d[R]/dt. and rate of reaction in terms of products = + d[P]/dt. now d[R]/dt is negative as conc. of reactant is decreasing but there is a -sign before it so overall it is +ve . so rate of reaction cant be negative now rate of reaction = k Can the rate constant k be a negative value? Yahoo AnswersApr 06, 2012 · rate of reaction in terms of reactants = - d[R]/dt. and rate of reaction in terms of products = + d[P]/dt. now d[R]/dt is negative as conc. of reactant is decreasing but there is a -sign before it so overall it is +ve . so rate of reaction cant be negative now rate of reaction = k

### Chemistry Help? Yahoo Answers

Jul 31, 2015 · The reaction below has an equilibrium constant of Kp=2.26×104 at 298 K. CO(g)+2H2(g)CH3OH(g) a.) Calculate Kp for the reaction below. CH3OH(g)CO(g)+2H2(g) Predict whether reactants or products will be favored at equilibrium in the reaction above. Chemistry Problem. HELP! Find the - ph.answers.yahooJul 21, 2011 · If a temperature increase from 11.0 C to 22.0 C doubles the rate constant for a reaction, what is the value of the activation barrier for the reaction? This is a mastering chem problem I only have one more try or the answer is wrong. If you can help please provide how you got the answer. Thanks!!!

### Chemistry half-life and rate constant? Yahoo Answers

Jan 03, 2012 · The reaction price consistent is defined by ok=ln(2)/T with the help of this you may be sure the 1/2-life time. besides the indisputable fact that, you dont favor this, in case you in simple terms have finished 1/2-life cases. Chemistry half-life and rate constant? Yahoo AnswersJan 03, 2012 · The reaction price consistent is defined by ok=ln(2)/T with the help of this you may be sure the 1/2-life time. besides the indisputable fact that, you dont favor this, in case you in simple terms have finished 1/2-life cases.

### Chemistry help:Rate constant? Yahoo Answers

Jan 24, 2017 · The rate law will be:Rate = k[A]^2[C], and the reaction is 0 order with respect to B. Now, take any reaction, plug in the rate and the concentrations of A and C and calculate the value of the rate constant. Chemistry help:Rate constant? Yahoo AnswersJan 24, 2017 · The rate law will be:Rate = k[A]^2[C], and the reaction is 0 order with respect to B. Now, take any reaction, plug in the rate and the concentrations of A and C and calculate the value of the rate constant.

### Chemistry rate constant and concentration? Yahoo Answers

Feb 15, 2021 · A reaction is second-order with respect to reactant A. The graph below shows the inverse concentration of A (in L/mol, or inverse of molarity) versus time of reaction. Use the graph to determine the rate constant for the reaction and the initial concentration of reactant A in the reaction. The rate constant (k) is _____ M-1s-1 and the initial concentration of reactant A is Chemistry rate law & rate constant - Yahoo AnswersMay 19, 2011 · Next compare reaction 2 with reaction 3. The [OH-] is tripled, and the rate goes up by 0.00828 / 0.00276 = 3, so the reaction is first order with respect to [OH-]. So, the rate law is:rate = k[ClO2]^2[OH-] b) To calculate the value of the rate constant, just pick any reaction, plug the rate and the concentrations into the rate law and solve for k.

### Chemistry rate/decay constant? Yahoo Answers

Feb 15, 2021 · The half-life of uranium-238 is 4.47 10^9 years. What is the decay constant for uranium? The equation for half-life is t1/2 = ln 2/k, where t1/2 is the half-life and k is the rate or decay constant. Chemistry..Integrated Rate Law help? Yahoo AnswersFeb 01, 2011 · The decomposition of hydrogen peroxide was studied, and the following data were obtained at a particular temperature. Time (s) [H2O2] (mol/L) ----- 0 1.00 120 ± 1 0.91 300 ± 1 0.78 600 ± 1 0.59 1200 ± 1 0.37 1800 ± 1 0.22 2400 ± 1 0.13 3000 ± 1 0.082 3600 ± 1 0.050 a) Assuming that the rate is given below, determine the rate law, integrated rate law, and the value of the rate constant.

### Find rate constant k by graphing? Yahoo Answers

Sep 08, 2010 · a nil order value consistent is a nil order value consistent. you won't be able to in good condition it right into a universal order equation because of the fact the reaction proceeds in any different case with time, and apart from, the instruments of the Help for your Yahoo AccountSelect the product you need help with and find a solution Yahoo questions? Get 24/7 live expert help with your Yahoo needsfrom email and passwords, technical

### Rate Law Equation. Chemistry Help!? Yahoo Answers

May 26, 2013 · rate = k [NO2]^2 = 1.08 X 0.4^2 = 0.173 M/s. now as reaction is :-NO2 -----> NO + 1/2O2. so rate = -d[NO2]/dt = d[NO]/dt = 2 d[O2]/dt. so d[NO]/dt = rate = 0.173 M/s. answer is a Rate constant chemistry question? help? Yahoo AnswersFeb 03, 2013 · Rate constant chemistry question? help? The rate constant for this first-order reaction is 0.430 s1 at 400 °C. How long (in seconds) would it take for the concentration of A to decrease from 0.670 M to 0.390 M?

### Chemistry rate constant and concentration? Yahoo Answers

Feb 15, 2021 · A reaction is second-order with respect to reactant A. The graph below shows the inverse concentration of A (in L/mol, or inverse of molarity) versus time of reaction. Use the graph to determine the rate constant for the reaction and the initial concentration of reactant A in the reaction. The rate constant (k) is _____ M-1s-1 and the initial concentration of reactant A is

## Post your comment