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How much heat is required to rise the te...

How much heat is required to rise the temperature of 20 g of mercury from `20^(@)C` to `30^(@)C` ?
`C_("mercury")=140 Jkg^(-1) K^(-1)`

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To calculate the heat required to raise the temperature of 20 g of mercury from \(20^\circ C\) to \(30^\circ C\), we can use the formula for heat transfer: \[ Q = mc\Delta T \] Where: - \(Q\) = heat absorbed or released (in Joules) ...
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CENGAGE PHYSICS-HEAT AND TEMPERATURE -MANDATORY EXERCISE (Exercise Set II)
  1. 10 g of water at 20^(@)C is mixed with 20 g of water at 10^(@)C The re...

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  2. The value of a is numerically equal to the percentage change in length...

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  3. How much heat is required to rise the temperature of 20 g of mercury f...

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  4. Calculate the amount of ice that can be melted when 1 kg of steam at 1...

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  5. The length of a rod increases from 50 cm to 50.12 cm, when its tempera...

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  6. A hot iron ball of mass 200 g is cooled from 373 K to 303 K. If the he...

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  7. Two bodies A and B having same initial tempera ture are supplied with ...

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  8. The specific heat capacities of Aluminium and Iron are 900 J kg^(-1) K...

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  9. Water can be used as an efficient coolant. Explain.

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  10. Sea breeze maintains a moderate climate near sea shors. Explain.

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  11. Why is the bulb of a thermometer made small?

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  12. In a building with two floors, the ground floor is cooler than the fir...

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  13. The principle of calorimetry is basically

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  14. Under what condition, is the principle of calorimetry not valid?

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  15. What is melting point or freezing point of any material?

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  16. What is boiling point of any material?

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  17. What is sublimation? Give example.

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  18. Phase change is a constant temperature process. Explain.

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  19. For a fixed mass of water, at what temperature will the volume become ...

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  20. A block of ice at 0^(@)C is converted to steam at 100^(@)C. Which pro...

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