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A sample of 0.1 g of water at and normal pressure requires 54 Cal of heat energy to convert to steam at. If the volume of the steam produced is 167.1 cc the change in internal energy of the sample, is
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Correct option is B
Using first law of thermodynamics,ΔQ=ΔU+ΔW⇒54×4.18=ΔU+1.013×105167.1×10-6-0⇒ΔU=208.7 JTalk to our academic expert!
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100 mol of an ideal gas is heated from 10° to 20°C keeping its (i) volume constant (ii) pressure constant.
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