The ideal gas and temperature
Answers are for parents and teachers.
1
Find the pressure of a gas with ρ = 1.5 kg/m³ and v = 400 m/s (Pa).
80000
2
Write 17 °C, 57 °C and –53 °C on the Kelvin scale.
290 K, 330 K, 220 K
3
Estimate p = nkT for n = 4·10²⁵ m⁻³ and T = 300 K.
about 1.7·10⁵ Pa
4
Why can a temperature of –300 °C not exist?
Because nothing is colder than –273 °C (0 K), where the thermal motion of molecules stops.
5
By what factor must the temperature (K) of a gas in a closed vessel rise to make the pressure four times larger?
4 times