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Water is boiled in a rectangular steel t...

Water is boiled in a rectangular steel tank of thickness 2 cm by a constant temperature furnace. Due to vaporisation, water level falls at a steady rate of 1 cm in 9 minutes. Calculate the temperature of the furnace. Given K for steel `0.2 cal s^(-1) m^(-1) .^(@)C^(-1)`

A

`110^(@)C`

B

`120^(@)C`

C

`130^(@)C`

D

`140^(@)C`

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The correct Answer is:
A
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FIITJEE-HEAT AND TEMPERATURE-ASSIGNMENT PROBLEMS (OBJECTIVE) (LEVEL-I)
  1. Two rods of same length and same material having area of cross section...

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  2. When the state of a system changes from A to B adiabatically the work ...

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  3. Water is boiled in a rectangular steel tank of thickness 2 cm by a con...

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  4. The specific heat of an ideal gas is proportional to

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  5. An insulated container is divided into two equal portions.One portion ...

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  6. The internal energy U is a unique function of any state because change...

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  7. One mole of monoatomic gas and one mole of diatomic gas are mixed toge...

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  8. A liquid with coefficient of real volume expansion (gamma) is filled i...

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  9. At room temperature (27^(@)C) the 'rms' speed of the molecules of a ce...

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  10. Two moles of a monatomic gas is mixed with three moles of a diatomic g...

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  11. A diatomic gas does 80 J of work when expanded isobarically. The heat ...

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  12. A block of ice -10^(@)C is slowly heated and converted to steam at 100...

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  13. When an ideal diatomic gas is heated at constant pressure, the fractio...

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  14. If the density of a gas at NTP is 1.3mg//cm^(3) and velocity of sound ...

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  15. The velocities of three molecules are 3v, 4v and 5v. Calculate their r...

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  16. If the average kinetic energy of gas molecule at 27^(@)C is 6.21xx10^(...

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  17. A substance of mass M kg requires a power input of P wants to remain i...

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  18. The coefficient of linear expansion of a rod is alpha and its length i...

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  19. Two idential container joined by a small pipe initially contain the sa...

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  20. A cyclic process ABCD is shown in the figure P-V diagram. Which of the...

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