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प्रश्न
The calorific values of five fuels A, B, C, D and E are given below:
| A | 48KJ/g |
| B | 17KJ/g |
| C | 150KJ/g |
| D | 50KJ/g |
| E | 30KJ/g |
उत्तर
| 1 | Cooking gas is D. |
| 2 | Alcohol is E. |
| 3 | Wood is B. |
| 4 | Hydrogen gas is C. |
| 5 | Kerosene is A. |
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संबंधित प्रश्न
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Which produces more energy : nuclear fusion or nuclear fission?
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(a) protons
(b) deutrons
(c) electrons
(d) neutrons
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`""_1^2H+_1^2H->_2^3He+xc+E`
Identify the particle c and the number x of such particles produced in the reaction.
Explain with diagram step-by-step energy conversion in Nuclear Power Plant.
Give scientific reason:
It is absolutely necessary to control the fission reaction in nuclear power plants.
What do you mean by atomic number?
Distinguish between α, β and γ rays.
The isotope of 92U235 decays by alpha emission to an isotope of Thorium (Th). The Thorium isotope decays by beta emission to an isotope of Protactaminum (Pa). Write down the equations to represent these two nuclear changes.
Give scientific reason.
It is absolutely necessary to control the fission reaction in nuclear power plants.
