Entropy Calculator Using Pressure and Temperature Compute specific entropy change for an ideal gas process using: Δs = cp ln(T2/T1) – R ln(P2/P1) Fluid Preset Dry AirNitrogen (N₂)Oxygen (O₂)Carbon Dioxide (CO₂)Custom Mass (kg) cp (kJ/kg-K) R (kJ/kg-K) Temperature Unit Kelvin…
Entropy Calculator at Different Pressure and Temperature Estimate entropy change using the ideal-gas relation with constant specific heat. Compare thermal and pressure effects instantly with a dynamic chart. Working Fluid Air (cp = 1.005, R = 0.287 kJ/kg-K)Nitrogen (cp =…
TI-84 Statistics Helper Calculate Sample Mean and Median TI 84 Enter your sample data below to instantly compute the mean, median, sorted list, sample size, and a visual chart. This page also explains how to find the same values on…
Entropy Calculator at Defferent Pressure and Temperature Estimate specific entropy change using a robust ideal-gas thermodynamics model with practical engineering defaults. Working Fluid AirNitrogenOxygenWater Vapor (Steam)Carbon Dioxide Temperature Unit Kelvin (K)Celsius (°C)Fahrenheit (°F) Initial Temperature T1 Final Temperature T2 Pressure…
Entropy at Constant Pressure Calculator Compute entropy change using the ideal relation for constant pressure processes: ΔS = n·Cp·ln(T2/T1) or ΔS = m·Cp·ln(T2/T1). Calculation Basis Molar Basis (n)Mass Basis (m) Amount (n in mol or m in kg) Specific Heat…
Enthalpy Calculator with Pressure and Temperature Estimate specific enthalpy using an incompressible-fluid engineering model: h = h_ref + c_p(T – T_ref) + v(P – P_ref). Fluid Preset Water (Liquid, 20 C)Sea Water (3.5% salinity)Ethylene Glycol (50%)Ammonia (Liquid)Custom Values Mass (kg)…
Enthalpy of Vaporization Calculator from Vapor Pressure Data Use the Clausius-Clapeyron relation to estimate ΔHvap from two pressure-temperature points, then visualize ln(P) versus 1 Substance Name (optional) Vapor Pressure P1 P1 Unit kPaPabaratmmmHg Temperature T1 T1 Unit °CK Vapor Pressure…
Statistical Matrix Calculator Calculate Sample Mean and Covariance Matrix R Paste multivariate data, compute the sample mean vector and covariance matrix instantly, and visualize each variable with a premium interactive chart. Enter one observation per line and separate values with…
ALEKS Chemistry Tool Calculating Enthalpy of Vaporization from Vapor Pressure (ALEKS) Use two vapor pressure measurements to calculate ΔHvap with the Clausius-Clapeyron equation, estimate a boiling temperature at a target pressure, and visualize the fitted vapor-pressure curve. Temperature Unit Kelvin…
Pressure-Entropy to Enthalpy Calculator Estimate specific enthalpy from pressure and entropy using a constant-cp idealized thermodynamic model. Suitable for quick engineering screening and trend analysis. Working Fluid Preset Water Vapor (Superheated Approx.)Air (Ideal Gas Approx.)Nitrogen (Ideal Gas Approx.) Specific Entropy…