SI Units and Symbols used in the THERMODYNAMIC

SI Units and Symbols used in the Guide Subject Physical Quantity Symbol Name Unit Mechanics Mass m, M kilogram kg Linear position Length, Distance Radius x, r  l, d R meter m Time t,  second s Linear angle, Angular position ,  radian rad Spherical angle steradian sr Area A - m2 Volume V - m3 Moment of inertia I - kg*m2 Density - kg/m3 Linear velocity v, u, c - m/s Angular velocity ,  - rad/s Linear momentum p - kg*m/s Angular momentum L - kg*m2/s Linear acceleration a - m/s2 Angular acceleration - rad/s2 Force F newton N=kg*m/s2 Torque - N*m Impulse I - N*s Work Energy W E joule J=N*m Power P watt W=J/s Dynamic viscosity - Pa*s Electricity and Magnetism Current I ampere A Charge Q, q, e coulomb C=A*s Current density j - A/m2 Volume charge density - C/m3 Surface charge density - C/m2 Linear charge density - C/m Electric potential Voltage emf V volt V=J/C Electric field E - N/C, V/m Electric flux - V*m Electric moment pe - C*m Resistance R, r ohm =V/A Specific resistance - *m Capacitance C farad F=C/V Specific conductivity - (*m)-1 Magnetic field B tesla T=N/(A*m) Magnetic flux weber Wb=T*m2=V*s Inductance Mutual-inductance L M henri H=Wb/A Magnetic moment pm - A*m2 Polarization P - C/m2 Magnetization I - A/m Thermodynamics Temperature T kelvin K Substance quantity M mole mol Pressure P - Pa Heat Q - J Heat capacity Entropy C S - J/K Specific heat c - J/(kg*K) Molar heat cm - J/(mol*K) energy flux j - W/m2 Surface tension - N/m Stress Elasticity modulus E pascal Pa=N/m2 Oscillations and Waves Wavelength - m Wave number k - m-1 Frequency f hertz Hz Energy density - J/m3 Energy flux J - J/m2 Intensity I - J/(m2*s) Reactance Impedance X Z ohm =V/A Optics Focal length f - m Luminous intensity I candela cd Luminous flux lumen lm=cd*m2 Illuminance E lux lk=lm/m2 Brightness L - cd/m2 Linear absorption coefficient - m-1 Quantum Physics Mass absorption coefficient - m2/kg Radioactive activity A becquerel Bq=s-1 Absorbed dose D gray Gy=J/kg