units of measurement

1 files changed, 14 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..79dda37
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,14 @@
+pub mod flow_rate;
+pub mod mass;
+pub mod pressure;
+pub mod temperature;
+pub mod volume;
+
+use crate::{pressure::Pressure, temperature::Temperature, volume::Volume};
+
+const GAS_CONSTANT: f64 = 8.314472;
+const MOLAR_MASS_OF_AIR: f64 = 0.0289647; // Kg/mol
+
+fn moles_from_gas_law(pressure: Pressure, volume: Volume, temperature: Temperature) -> f64 {
+    (pressure.as_pascals() * volume.as_cubic_metres()) / (GAS_CONSTANT * temperature.as_kelvin())
+}