Question

Gallium boils at 2205◦ C. What is the corresponding temperature in the Fahrenheit and Kelvin scales?

If a certain sample of an ideal gas has a temperature of 109◦ C and exerts a pressure of 1.2×104Pa on the walls of its container, how many gas molecules are present in each cubic centimeter of volume?

Answer 1

1)

$t_F=1.8\cdot t_C+32=4001°F,$

$T=t_C+273=2478~K.$

2)

$n=\frac{p}{kT}=\frac{1.2\cdot 10^4}{1.38\cdot 10^{-23}\cdot 382}=2.28\cdot 10^{18}~cm^{-3}.$