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A temperature at which both the Fahrenhe...

A temperature at which both the Fahrenheit and the centigrade scales have the same value is

A

`40^(@)`

B

`-40^(@)`

C

20

D

`-20^(@)`

Text Solution

Verified by Experts

The correct Answer is:
b
Let the required temperature be t, then `(t)/(5)=(t-32)/(9)rArr t=-40^(@)`
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FULL MARKS-HEAT AND THERMODYNAMICS-ADDITIONAL QUESTIONS SOLVED (I. Choose the correct answer from the following)
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  2. A difference of temperature of 25°C is equivalent to a difference of

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  3. A temperature at which both the Fahrenheit and the centigrade scales h...

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  4. If the temperature of patient is 40^(@)C, his temperature on the Fahre...

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  5. The correct value of 0^(@)C on the Kelvin scale is ……………..

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  6. When a gas in a closed vessel was heated so as to increase its tempera...

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  7. A perfect gas at 27^(@)C is heated at constant pressure so as to doubl...

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  8. Temperature can be expressed as a derived qqantity in terms of ……….. .

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  9. The equation of state corresponding to 8 g of O(2) is

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  10. At a given volume and temperature, the pressure of a gas ……….. .

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  11. Oxygen boils at -183^(@)C. This temperature in Fahrenheit scale is ……....

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  12. A centigrade and a Fahrenheit thermometer are dipped in boiling water....

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  13. The change in temperature of a body is 50^(@)C. The change on the kelv...

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  14. Mercury themometers can be used to measure temperature up to ……………… .

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  15. For an ideal gas

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  16. Device used to measure very high temperature is ……………….. .

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  17. Two metal rods A and B are having their initial lengths in the ratio 2...

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  18. Boyles' law is applicable in ……………. .

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  19. A rod, when heated from 0^(@)C to 50^(@)C, expands by 1.0 mm. Another ...

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  20. A container contains hydrogen gas at pressure P and temperature T. Ano...

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