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A Steel rod of length 25 cm has a cross ...

A Steel rod of length 25 cm has a cross - sectional area of `0.8cm^(2)`. The force required to stretch this rod by the same amount as the expansion produced by heating it through `10^(@)C` is (coefficient of linear expansion of steel is `10^(-5)//^(@)C` and Young's modulus of steel is `2xx10^(10)N//m^(2)`).................... .

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The required force is given by `F=YA alpha Deltat=2xx10^(10)xx0.8xx10^(-4)xx10^(-5)xx10=160N`
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FULL MARKS-HEAT AND THERMODYNAMICS-ADDITIONAL QUESTIONS SOLVED (Numerical Problems)
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  2. A Steel rod of length 25 cm has a cross - sectional area of 0.8cm^(2)....

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  7. A rod of metal - 1 of length 50.0 cm elongates by 0.10 cm when it is h...

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  8. A balloon is filled at 27^(@)C and 1 atm pressure by 500m^(3) He. Then...

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  9. During an experiment an ideal gas is found to obey an additional law V...

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  10. Two vessels separately contain two ideal gases A and B at the same tem...

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  11. For a gas the difference between the two specific heates is 4150 J/Kg ...

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  12. A mass of ideal gas at pressure P is expanded isothermally to four tim...

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  14. A perfect gas goes from state A to state B by absorbing 8xx10^(5)J of ...

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