Enthalpy of System Solution

STEP 0: Pre-Calculation Summary
Formula Used
System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference
Hsys = n*Cp molar*ΔT
This formula uses 4 Variables
Variables Used
System Enthalpy - (Measured in Joule) - System Enthalpy is the thermodynamic quantity equivalent to the total heat content of a system.
Number of Moles of Ideal Gas - (Measured in Mole) - Number of Moles of Ideal Gas is the amount of gas present in moles. 1 mole of gas weighs as much as its molecular weight.
Molar Specific Heat Capacity at Constant Pressure - (Measured in Joule Per Kelvin Per Mole) - Molar Specific Heat Capacity at Constant Pressure, (of a gas) is the amount of heat required to raise the temperature of 1 mol of the gas by 1 °C at the constant pressure.
Temperature Difference - (Measured in Kelvin) - Temperature Difference is the measure of the hotness or the coldness of an object.
STEP 1: Convert Input(s) to Base Unit
Number of Moles of Ideal Gas: 3 Mole --> 3 Mole No Conversion Required
Molar Specific Heat Capacity at Constant Pressure: 122 Joule Per Kelvin Per Mole --> 122 Joule Per Kelvin Per Mole No Conversion Required
Temperature Difference: 400 Kelvin --> 400 Kelvin No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Hsys = n*Cp molar*ΔT --> 3*122*400
Evaluating ... ...
Hsys = 146400
STEP 3: Convert Result to Output's Unit
146400 Joule --> No Conversion Required
FINAL ANSWER
146400 Joule <-- System Enthalpy
(Calculation completed in 00.004 seconds)

Credits

Created by Ishan Gupta
Birla Institute of Technology & Science (BITS), Pilani
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20 Ideal Gas Calculators

Work Done in Adiabatic Process using Specific Heat Capacity at Constant Pressure and Volume
Go Work done in Thermodynamic Process = (Initial Pressure of System*Initial Volume of System-Final Pressure of System*Final Volume of System)/((Molar Specific Heat Capacity at Constant Pressure/Molar Specific Heat Capacity at Constant Volume)-1)
Final Temperature in Adiabatic Process (using pressure)
Go Final Temperature in Adiabatic Process = Initial temperature of Gas*(Final Pressure of System/Initial Pressure of System)^(1-1/(Molar Specific Heat Capacity at Constant Pressure/Molar Specific Heat Capacity at Constant Volume))
Final Temperature in Adiabatic Process (using volume)
Go Final Temperature in Adiabatic Process = Initial temperature of Gas*(Initial Volume of System/Final Volume of System)^((Molar Specific Heat Capacity at Constant Pressure/Molar Specific Heat Capacity at Constant Volume)-1)
Work Done in Isothermal Process (using volume)
Go Work done in Thermodynamic Process = Number of Moles of Ideal Gas* [R]*Temperature of Gas*ln(Final Volume of System/Initial Volume of System)
Heat Transferred in Isothermal Process (using Pressure)
Go Heat Transferred in Thermodynamic Process = [R]*Initial temperature of Gas*ln(Initial Pressure of System/Final Pressure of System)
Heat Transferred in Isothermal Process (using Volume)
Go Heat Transferred in Thermodynamic Process = [R]*Initial temperature of Gas*ln(Final Volume of System/Initial Volume of System)
Work done in Isothermal Process (using Pressure)
Go Work done in Thermodynamic Process = [R]*Temperature of Gas*ln(Initial Pressure of System/Final Pressure of System)
Relative Humidity
Go Relative Humidity = Specific Humidity*Partial Pressure/((0.622+Specific Humidity)*Vapor Pressure of Pure Component A)
Heat Transfer in Isobaric Process
Go Heat Transferred in Thermodynamic Process = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference
Heat Transfer in Isochoric Process
Go Heat Transferred in Thermodynamic Process = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Volume*Temperature Difference
Change in Internal Energy of System
Go Change in Internal Energy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Volume*Temperature Difference
Enthalpy of System
Go System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference
Ideal Gas Law for Calculating Volume
Go Ideal Gas Law for Calculating Volume = [R]*Temperature of Gas/Total Pressure of Ideal Gas
Ideal Gas Law for Calculating Pressure
Go Ideal Gas Law for calculating Pressure = [R]*(Temperature of Gas)/Total Volume of System
Adiabatic Index
Go Heat Capacity Ratio = Molar Specific Heat Capacity at Constant Pressure/Molar Specific Heat Capacity at Constant Volume
Specific Heat Capacity at Constant Pressure
Go Molar Specific Heat Capacity at Constant Pressure = [R]+Molar Specific Heat Capacity at Constant Volume
Specific Heat Capacity at Constant Volume
Go Molar Specific Heat Capacity at Constant Volume = Molar Specific Heat Capacity at Constant Pressure-[R]
Henry Law Constant using Mole Fraction and Partial Pressure of Gas
Go Henry Law Constant = Partial Pressure/Mole Fraction of Component in Liquid Phase
Mole Fraction of Dissolved Gas using Henry Law
Go Mole Fraction of Component in Liquid Phase = Partial Pressure/Henry Law Constant
Partial Pressure using Henry Law
Go Partial Pressure = Henry Law Constant*Mole Fraction of Component in Liquid Phase

10+ Thermodynamics Properties Calculators

Change in Internal Energy of System
Go Change in Internal Energy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Volume*Temperature Difference
Enthalpy of System
Go System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference
Absolute Temperature
Go Absolute Temperature = Heat from Low Temperature Reservoir/Heat from High Temperature Reservoir
Specific Gravity
Go Specific Gravity of Liquid 1 = Density of Substance/Water Density
Pressure
Go Pressure = 1/3*Density of Gas*Root Mean Square Velocity^2
Absolute Pressure
Go Absolute Pressure = Atmospheric Pressure+Vacuum Pressure
Specific Weight
Go Specific Weight Unit = Weight of Body/Volume
Specific Entropy
Go Specific Entropy = Entropy/Mass
Specific Volume
Go Specific Volume = Volume/Mass
Density
Go Density = Mass/Volume

Enthalpy of System Formula

System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference
Hsys = n*Cp molar*ΔT

What is enthalpy?

Enthalpy is a property of a thermodynamic system, defined as the sum of the system's internal energy and the product of its pressure and volume. As a state function, enthalpy depends only on the final configuration of internal energy, pressure, and volume, not on the path taken to achieve it.

How to Calculate Enthalpy of System?

Enthalpy of System calculator uses System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference to calculate the System Enthalpy, Enthalpy of System is its thermodynamic property, defined as the sum of the system's internal energy and the product of its pressure and volume. It is a convenient state function standardly used in many measurements in chemical, biological, and physical systems at a constant pressure. The pressure-volume term expresses the work required to establish the system's physical dimensions, i.e. to make room for it by displacing its surroundings. As a state function, enthalpy depends only on the final configuration of internal energy, pressure, and volume, not on the path taken to achieve it. System Enthalpy is denoted by Hsys symbol.

How to calculate Enthalpy of System using this online calculator? To use this online calculator for Enthalpy of System, enter Number of Moles of Ideal Gas (n), Molar Specific Heat Capacity at Constant Pressure (Cp molar) & Temperature Difference (ΔT) and hit the calculate button. Here is how the Enthalpy of System calculation can be explained with given input values -> 146400 = 3*122*400.

FAQ

What is Enthalpy of System?
Enthalpy of System is its thermodynamic property, defined as the sum of the system's internal energy and the product of its pressure and volume. It is a convenient state function standardly used in many measurements in chemical, biological, and physical systems at a constant pressure. The pressure-volume term expresses the work required to establish the system's physical dimensions, i.e. to make room for it by displacing its surroundings. As a state function, enthalpy depends only on the final configuration of internal energy, pressure, and volume, not on the path taken to achieve it and is represented as Hsys = n*Cp molar*ΔT or System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference. Number of Moles of Ideal Gas is the amount of gas present in moles. 1 mole of gas weighs as much as its molecular weight, Molar Specific Heat Capacity at Constant Pressure, (of a gas) is the amount of heat required to raise the temperature of 1 mol of the gas by 1 °C at the constant pressure & Temperature Difference is the measure of the hotness or the coldness of an object.
How to calculate Enthalpy of System?
Enthalpy of System is its thermodynamic property, defined as the sum of the system's internal energy and the product of its pressure and volume. It is a convenient state function standardly used in many measurements in chemical, biological, and physical systems at a constant pressure. The pressure-volume term expresses the work required to establish the system's physical dimensions, i.e. to make room for it by displacing its surroundings. As a state function, enthalpy depends only on the final configuration of internal energy, pressure, and volume, not on the path taken to achieve it is calculated using System Enthalpy = Number of Moles of Ideal Gas*Molar Specific Heat Capacity at Constant Pressure*Temperature Difference. To calculate Enthalpy of System, you need Number of Moles of Ideal Gas (n), Molar Specific Heat Capacity at Constant Pressure (Cp molar) & Temperature Difference (ΔT). With our tool, you need to enter the respective value for Number of Moles of Ideal Gas, Molar Specific Heat Capacity at Constant Pressure & Temperature Difference and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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