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प्रश्न
Two metallic blocks P and Q of masses in ratio 2: 1 are given the same amount of heat. If their temperature rise by the same amount, compare their specific heat capacities.
उत्तर
Let CP and Cq be the specific heat capacities of blocks P and Q respectively,
We know that,
`Q/(m xx Δt)`
`∴ (C_p/C_q) = ((Q / (2m xxΔt))/(Q / (m xx ΔT)) ) = 1/2`
Hence, the required ratio is 1: 2.
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संबंधित प्रश्न
Discuss the role of high specific heat capacity of water with reference to climate in coastal areas.
Define the term 'specific heat capacity' and state its unit.
Name the substance which has maximum specific heat capacity.
Explain, why temperature in hot summer, falls sharply after a sharp shower?
Water falls from a height of 50 m. Calculate the rise in the temperature of water when it strikes the bottom.
(g = 10 ms-2; Specific heat capacity of water = 4200 J / kg°C)
The specific heat capacity of water is 1 cal/g °C.
The cold object the hot object enclosed in one box of heat-resistant material.
- What changes will occur in the two objects when temperature flows from those objects?
- Which principle can show that the energy exchange takes place between two objects only when kept in isolated system?
Match the following:
| Column A | Column B | ||
| 1. | Specific heat capacity of water | a. | 0°C |
| 2. | Latent heat of fusion of ice | b. | 2260 J/g |
| 3. | Latent heat of vaporization of water | c. | 100°C |
| 4. | The melting point of iced | d. | 4.2 J/g°C |
| 5. | The boiling point of water | e. | 336 J/g |
