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A cylinder of mass 1kg is given heat of ...

A cylinder of mass 1kg is given heat of 20,000J at atmospheric pressure. If initially the temperature of cylinder is `20^@C`, find
(a) final temperature of the cylinder.
(b) work done by the cylinder.
(c) change in internal energy of the cylinder
(Given that specific heat of cylinder=`400Jkg^-1^@C^-1,` Atmospheric pressure= `10^5N//m^2` and Density of cylinder=`9000kg//m^3`)

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The correct Answer is:
`(a) T _("real") = 70^(@)C, (b) 0.05J, (C ) 19999.95`
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