Home
Class 12
PHYSICS
|Q| value of the reaction, N^(4)+alpha r...

`|Q|` value of the reaction, `N^(4)+alpha rarrO^(17)+p`
[the masses of `N^(14),He^(4),p,O^(17)` are respectively `14.00374 u, 4.0026 u,1.00783 u` and `16.99913 u` is `x//5MeV`. Value of `x` is nearly `[1 u=931.5 MeV]`

Text Solution

AI Generated Solution

The correct Answer is:
To find the Q value of the nuclear reaction \( N^{14} + \alpha \rightarrow O^{17} + p \), we follow these steps: ### Step 1: Write down the masses involved in the reaction - Mass of \( N^{14} \) (Nitrogen): \( 14.00374 \, u \) - Mass of \( \alpha \) (Helium): \( 4.0026 \, u \) - Mass of \( O^{17} \) (Oxygen): \( 16.99913 \, u \) - Mass of \( p \) (Proton): \( 1.00783 \, u \) ### Step 2: Calculate the total mass of the reactants The total mass of the reactants is the sum of the masses of nitrogen and the alpha particle: \[ \text{Total mass of reactants} = m(N^{14}) + m(\alpha) = 14.00374 \, u + 4.0026 \, u = 18.00634 \, u \] ### Step 3: Calculate the total mass of the products The total mass of the products is the sum of the masses of oxygen and the proton: \[ \text{Total mass of products} = m(O^{17}) + m(p) = 16.99913 \, u + 1.00783 \, u = 18.00696 \, u \] ### Step 4: Calculate the mass defect The mass defect \( \Delta m \) is the difference between the total mass of the reactants and the total mass of the products: \[ \Delta m = \text{Total mass of reactants} - \text{Total mass of products} \] \[ \Delta m = 18.00634 \, u - 18.00696 \, u = -0.00062 \, u \] ### Step 5: Calculate the Q value The Q value is related to the mass defect by the formula: \[ Q = \Delta m \times 931.5 \, \text{MeV/u} \] Substituting the value of \( \Delta m \): \[ Q = -0.00062 \, u \times 931.5 \, \text{MeV/u} \approx -0.577 \, \text{MeV} \] ### Step 6: Relate Q value to the given expression According to the problem, the Q value is given as \( \frac{x}{5} \, \text{MeV} \). Therefore, we set: \[ \frac{x}{5} = -0.577 \Rightarrow x = -0.577 \times 5 \approx -2.885 \] ### Step 7: Rounding and final answer Since the value of \( x \) is typically expressed as a positive integer in such contexts, we take the absolute value and round it appropriately. Thus, the final answer for \( x \) is approximately \( 3 \). ### Final Answer The value of \( x \) is \( 3 \). ---

To find the Q value of the nuclear reaction \( N^{14} + \alpha \rightarrow O^{17} + p \), we follow these steps: ### Step 1: Write down the masses involved in the reaction - Mass of \( N^{14} \) (Nitrogen): \( 14.00374 \, u \) - Mass of \( \alpha \) (Helium): \( 4.0026 \, u \) - Mass of \( O^{17} \) (Oxygen): \( 16.99913 \, u \) - Mass of \( p \) (Proton): \( 1.00783 \, u \) ...
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR PHYSICS

    NARAYNA|Exercise NCERT Based question|72 Videos
  • NUCLEAR PHYSICS

    NARAYNA|Exercise Previous JEE questions|21 Videos
  • NUCLEAR PHYSICS

    NARAYNA|Exercise Level-V questions(Single answer type questions)|12 Videos
  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise EXERCISE - 4|20 Videos
  • NUCLEI

    NARAYNA|Exercise ASSERTION & REASON|5 Videos

Similar Questions

Explore conceptually related problems

Find the Q value of the reaction N^(14)+alpha rarr O^(17) +P The mass of are, respectivley , 14.00307 u, 4.00260 u , and 16.99913u . Find the total kinetic energy of the products if the striking alpha partilcles has the minimum kinetic energy required to intiate the reaction .

Find the minimum kinetic energy of an alpha -particle to cause the reaction ^14N(alpha,p)^17O . The masses of ^14N , ^4He , ^1H and ^17O are respectively 14.00307u, 4.00260u, 1.00783u and 16.99913u.

What is the Q-value of the reaction? ""^(1)H+""^(7)Lito ""^(4)He+""^(4)He The atomic masses of ""^(1)H,""^(4)Heand ""^(7)Li 1.007825u, 4.0026034u and 7.01600u, respectively.

If u_(n) = cos^(n) alpha + sin^(n) alpha , then the value of 2 u_(6) - 3 u_(4) +1 is :

Find the Q value of the reaction P + .^(7) Li rarr .^(4) He +.^(4) He . Determine whether the reaction is exothermic or endothermic. The atomic masses of .^(1) H,.^(4) He and .^(7)Li are 1.007825 u,4.002603 u , and 7.016004 u , respectively.

A._(7)^(14)N nucleus, when bombarded by ._(2)^(4)He , converts into ._(8)^(17)O accoring to the following reaction. ._(7)^(14)N+._(2)^(4)Herarr._(8)^(17)O+._(1)^(1)H Atomic masses are: .^(14)N:14.003u,.^(4)He:4.003u,.^(17)O:16.999u,.^(1)H:1.008u (a) Find the Q value of the reactions (b) Assume that a .^(4)He nucleus collides with a free .^(14)N nucleus originally at rest. Calculate the minimum kinetic energy (k_(0)) that .^(4)He must have so as to cause this reaction. (c) If the .^(17)O nucleus has an excitation energy of 1.0 MeV, find the minimum kinetic energy (k_(0)) that .^(4)He must have. [Take 1u=930MeV//c^(2) ]

Calculate the molecular masses of K_(4)[Fe(CN)_(6)] Given atomic masses C=12.0u, H=1.0u O=16.0u, K=39.0u, Mn=55.0u Fe=56.0u, N=14.0u

NARAYNA-NUCLEAR PHYSICS-Level-V Multiple answer questions
  1. A town has a population of 1 million. The average electric power neede...

    Text Solution

    |

  2. A town has a population of 1 million. The average electric power neede...

    Text Solution

    |

  3. A town has a population of 1 million. The average electric power neede...

    Text Solution

    |

  4. The nuclear charge (Ze) is non uniformlly distribute with in a nucleus...

    Text Solution

    |

  5. The nuclear charge (Ze) is non uniformlly distribute with in a nucleus...

    Text Solution

    |

  6. Assume that the mass of nucleus is given by M=Amp where A is the mass ...

    Text Solution

    |

  7. If .(92)U^(238) changes to .(85)At^(210) by a series of alpha-and beta...

    Text Solution

    |

  8. At a given instant, there are 25% undecayed radio-active nuclei in a s...

    Text Solution

    |

  9. There are two radio-active nuclei A and B. A in an alfa-emitter while ...

    Text Solution

    |

  10. A small quantity of solution containing Na^24 radio nuclide (half-life...

    Text Solution

    |

  11. The radioactive of a sample is R(1) at a time T(1) and R(2) at a time ...

    Text Solution

    |

  12. In a nuclear reactor an element X decays to a radio active element Y a...

    Text Solution

    |

  13. A charged capacitor of capacity C is discharge through a resistance R....

    Text Solution

    |

  14. A radio nuclide with half-life T days emits beta-particles of average ...

    Text Solution

    |

  15. The average lifetime for the n = 3 excited state of a hydrogen-like at...

    Text Solution

    |

  16. In an alpha -decay, the kinetic energy of alpha-particles is 48 MeV a...

    Text Solution

    |

  17. Consider a nuclear reaction A+B rarr C. A nucleus A moving with kinet...

    Text Solution

    |

  18. |Q| value of the reaction, N^(4)+alpha rarrO^(17)+p [the masses of N...

    Text Solution

    |

  19. In a nucleus reactor 0.96 grams of .(92)U^(235) is consumed in one day...

    Text Solution

    |

  20. The amount of heat generated by 1.0 mg of a Po^(210) preparation durin...

    Text Solution

    |