A vessel contains 16g of hydrogen and 128g of oxygen at standard temperature and pressure. The volume of the vessel in cm3 is :
Solution
<p>Total number of moles are</p>
<p>$n = {n_{{H_2}}} + {n_{{O_2}}}$</p>
<p>$= {{16} \over 2} + {{128} \over {32}}$</p>
<p>= 12 moles</p>
<p>Using $PV = nRT$</p>
<p>$V = {{nRT} \over P}$</p>
<p>$= {{12 \times 8.31 \times 273.15} \over {{{10}^5}}}$ m<sup>3</sup></p>
<p>= 0.27 m<sup>3</sup> = 27 $\times$ 10<sup>4</sup> cm<sup>3</sup></p>
About this question
Subject: Physics · Chapter: Thermodynamics · Topic: Zeroth and First Law
This question is part of PrepWiser's free JEE Main question bank. 271 more solved questions on Thermodynamics are available — start with the harder ones if your accuracy is >70%.