A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be __________ c.c.

Answer: Option B

Since at constant pressure almost all the gases exhibit an linear relationship between the volume and temperature w can write $$\frac{V_1}{V_2}=\frac{T_1}{T_2}$$   so, $$\frac{27.3}{V_2}=\frac{273}{283}$$
Hence, $$V_2$$ $$=28.3c.c.$$