TS EAMCET · Physics · Thermal Properties of Matter
\(1 \mathrm{~g}\) of water at \(100^{\circ} \mathrm{C}\) is completely converted into steam at \(100^{\circ} \mathrm{C} .1 \mathrm{~g}\) of steam occupies a volume of 1650 cc. (Neglect the volume of \(1 \mathrm{~g}\) of water at \(100^{\circ} \mathrm{C}\) ). At the pressure of \(10^5 \mathrm{~N} / \mathrm{m}^2\), latent heat of steam is 540 cals \(/ \mathrm{g}\) ( 1 calorie \(=4.2\) joule). The increase in the internal energy (in joule) is
- A 2310
- B 2203
- C 1650
- D 2150
Answer & Solution
Correct Answer
(B) 2203
Step-by-step Solution
Detailed explanation
Heat required to convert \(1 \mathrm{~g}\) of water at \(100^{\circ} \mathrm{C}\) completely into steam at \(100^{\circ} \mathrm{C}\) \[ \begin{aligned} & d Q=m L \\ & =1 \times 540 \text { calorie } \\ & =540 \times 4.2=2268 \mathrm{~J} \end{aligned} \] Work done in expanding…
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