Question

A gas has a volume of 15 ml at 300 K and 740 mm of Hg. Find the temperature if volume becomes 10 ml at 760 mm pressure of Hg.

• A. 205 K
• B. 209 K
• C. 275 K
• D. $-200\text{ }K$

Answer 1

Answer: (A)

205 K

Answer 2

: According to gas equation, $\frac{{{P}_{1}}{{V}_{1}}}{{{T}_{1}}}=\frac{{{P}_{2}}{{V}_{2}}}{{{T}_{2}}}$ or, $\frac{740\times 15}{300}=\frac{760\times 10}{{{T}_{2}}}$ $\therefore$ ${{T}_{2}}=205\,K$