Question

The pressure of a gas filled in the bulb of constant volume gas thermometer at $0^{0}C$ and ${100}^{0}C$ are 28.6 cm and 36.6 cm of mercury respectively. The temperature of bulb at which pressure will be 35.00 cm of mercury will be:

• A. ${80}^{0}C$
• B. ${70}^{0}C$
• C. ${55}^{0}C$
• D. ${40}^{0}C$

Answer 1

The correct option is A ${80}^{0}C$

from$T=\frac{p-p_0}{p_{100}-p_0}\times {100}^0=\frac{35-28.6}{36.6-28.6}\times {100}^0={80}^0$