Home
Class 12
CHEMISTRY
The graph between log k and 1/T[K is rat...

The graph between log k and 1/T[K is rate constant (`sec^(-1)`) and T the temperature (K)] is a straight line with `OX=5 and theta=tan^(-1)(-1/2.303)`.Calculate the value of `E_a` is cal. ?

Text Solution

Verified by Experts

The correct Answer is:
2
`2.303logK=-E_a/(RT)+2.303logÅ`
Thus, `-E_a/(2.303R)=tan theta=-1/2.303`
`:. E_a=R=2` cal.
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise A.L.P|39 Videos

  • SOLID STATE

    RESONANCE|Exercise PHYSICAL CHEMITRY (SOLID STATE)|45 Videos

Similar Questions

Explore conceptually related problems

Graph between log k and 1//T [ k rate constant (s^(-1)) and T and the temperature (K) ] is a straight line with OX =5, theta = tan^(-1) (1//2.303) . Hence -E_(a) will be

The graph between log k versus 1//T is a straight line.

Graph between log k and (1)/(T) (k is rate constant in s^(-1) and T is the temperature in K) is a straight line. As shown in figure if OX = 5 and slope of the line =- (1)/(2.303) then E_(a) is :

A graph plotted between log k vs (1)/(T) is represented by

The graph between the log K versus 1/T is a straight line. The slope of the line is

Variation of equiibrium constant K with temperature T is given by van 't Holf equation, log K=logA-(DeltaH^(@))/(2.303RT) A graph between log K and T^(-1) was a straight line as shown in the figure and having theta=tan^(-1)(0.5)"and"OP=10 . Calculate: (a) DeltaH^(@) (standard heat of reaction)when T=300K, (b) A (pre-exponetial factor), (c) Equilibrium constant K at 300 K, (d) K "at" 900 K "if" DeltaH^(@) is independent of temperature.

If a graph is plotted between ln k and 1//T for the first order reaction, the slope of the straight line so obtained is given by

RESONANCE-RANK BOOSTER-All Questions
  1. The graph between log k and 1/T[K is rate constant (sec^(-1)) and T th...

    Text Solution

    |

  2. The reduction potential of hydrogen half cell will be negative if :

    Text Solution

    |

  3. A very thin copper plate is electro- plated with gold using gold chlor...

    Text Solution

    |

  4. We have taken a saturated solution of AgBr,K(sp) of AgBr is 12xx10^(-1...

    Text Solution

    |

  5. At what [Br^(-)]/sqrt(CO(3)^(2-)] does the following cell have its rea...

    Text Solution

    |

  6. Consider the cell Ag(s)|AgBr(s)Br^(c-)(aq)||AgCl(s),Cl^(c-)(aq)|Ag(s) ...

    Text Solution

    |

  7. For a saturated solution of AgCl at 25^(@)C,k=3.4xx10^(-6) ohm^(-1)cm^...

    Text Solution

    |

  8. With t taken in seconds and I taken in amp, the variation of I follows...

    Text Solution

    |

  9. You are given the followin cell at 298 K, Zn|(Zn^(+ +) .((aq.))),(0.01...

    Text Solution

    |

  10. A resistance of 50Omega is registered when two electrodes are suspende...

    Text Solution

    |

  11. the standard reduction potenital of a silver chloride electrode is 0.2...

    Text Solution

    |

  12. Calcualte the cell EMP in mV for Pt|H(2)(1 atm) | HCl(0.01 M)|| AgCl...

    Text Solution

    |

  13. Calculate the value of Lambda(m) ^prop for SrCl(2) in water at 25^(@)...

    Text Solution

    |

  14. Select the correct statement if- E(Mg^(2+)//Mg)^(@)=-2.4V, E(Sn^(4+)...

    Text Solution

    |

  15. For the cell (at 298K) Ag(s) | AgCl(s) | Cl^(-)(aq)|| AgNO(3)(aq) | ...

    Text Solution

    |

  16. Peroxodisulphate salts, (e.g., Na(2)S(2)O(8)) are strong oxidizing age...

    Text Solution

    |

  17. In which of the following cell(s): E("cell")=E("cell")^(@)?

    Text Solution

    |

  18. A current of 2.68A is passed for one hour through an aqeous solution o...

    Text Solution

    |

  19. Which is/are correct among the following? Given the half cell EMFs E...

    Text Solution

    |

  20. Mark out the correct statement(s) regarding electrolytic molar conduct...

    Text Solution

    |

  21. Statement-1:Zinc protect the iron better than tin even after it cracks...

    Text Solution

    |