Unit 2 Equations and Units

Units

Unit        Abbreviation      Measures                     Description

Newton            N                    force                  A measure of how hard something is pushed or pulled

joule                J                    energy                The amount of energy needed to lift 1 N a distance of 1 m

Calorie            cal                 heat energy           The energy needed to make 1 g of water 1^◦ C hotter 

Kelvin              K           absolute temperature     the average kinetic energy of random atomic motion

Gas constant

R = .08206     (this value only applies when using liters for volume, and atmospheres for pressure)

Equations

Dq = m ´ Dt ´ C_p                     

P₁V₁ = P₂V₂