Pressure given Enthalpy and Internal Energy Calculator

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✖Change in Enthalpy in the System is the thermodynamic quantity equivalent to the total difference between the heat content of a system.ⓘ Change in Enthalpy in the System [dH]			+10% -10%
✖Change in Internal Energy of the System is defined as all the energy within a given system, including the kinetic energy of molecules and the energy stored in all of the chemical bonds .ⓘ Change in Internal Energy of the System [dU_c]			+10% -10%
✖Small Volume Change is the indicator that shows whether or not a volume trend is developing in either an up or down direction.ⓘ Small Volume Change [dV_small]			+10% -10%

✖Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.ⓘ Pressure given Enthalpy and Internal Energy [p]

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Formula

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Pressure given Enthalpy and Internal Energy

Formula

`"p" = ("dH"-"dU"_{"c"})/"dV"_{"small"}`

Example

`"7500Pa"=("2000J"-"500J")/"0.2m³"`

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Pressure given Enthalpy and Internal Energy Solution

STEP 0: Pre-Calculation Summary

Formula Used

Pressure = (Change in Enthalpy in the System-Change in Internal Energy of the System)/Small Volume Change
p = (dH-dU_c)/dV_small
This formula uses 4 Variables

Variables Used

Pressure - (Measured in Pascal) - Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
Change in Enthalpy in the System - (Measured in Joule) - Change in Enthalpy in the System is the thermodynamic quantity equivalent to the total difference between the heat content of a system.
Change in Internal Energy of the System - (Measured in Joule) - Change in Internal Energy of the System is defined as all the energy within a given system, including the kinetic energy of molecules and the energy stored in all of the chemical bonds .
Small Volume Change - (Measured in Cubic Meter) - Small Volume Change is the indicator that shows whether or not a volume trend is developing in either an up or down direction.

STEP 1: Convert Input(s) to Base Unit

Change in Enthalpy in the System: 2000 Joule --> 2000 Joule No Conversion Required
Change in Internal Energy of the System: 500 Joule --> 500 Joule No Conversion Required
Small Volume Change: 0.2 Cubic Meter --> 0.2 Cubic Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

p = (dH-dU_c)/dV_small --> (2000-500)/0.2

Evaluating ... ...

p = 7500

STEP 3: Convert Result to Output's Unit

7500 Pascal --> No Conversion Required

FINAL ANSWER

7500 Pascal <-- Pressure

(Calculation completed in 00.020 seconds)

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< 25 First Order Thermodynamics Calculators

Isothermal Compression

Go Work Done in Isothermal Compression = -Number of Moles given KE*8.314*Low Temperature*ln(Volume Initially/Volume finally)

Isothermal Expansion

Go Work Done in Isothermal Expansion = -Number of Moles given KE*8.314*High Temperature*ln(Volume finally/Volume Initially)

Work Done by System in Isothermal Process

Go Work Done by the System = -Number of Moles given KE*8.314*Temperature given RP*ln(Volume finally/Volume Initially)

Adiabatic Compression

Go Work Done by the System = 8.314*(Low Temperature-High Temperature)/(Adiabatic Coefficient-1)

Adiabatic Expansion

Go Work Done by the System = 8.314*(High Temperature-Low Temperature)/(Adiabatic Coefficient-1)

Coefficient of Performance of Refrigerator given Energy

Go Coefficient of Performance of Refrigerator = Sink Energy/(System Energy-Sink Energy)

Coefficient of Performance for Refrigeration

Go Coefficient of Performance = Low Temperature/(High Temperature-Low Temperature)

Change in Internal Energy given Cv

Go Change in Internal Energy of the System = Heat Capacity at Constant Volume*Change in Temperature

Change in Enthalpy given Cp

Go Change in Enthalpy in the System = Heat Capacity at Constant Pressure*Change in Temperature

Specific Heat Capacity in Thermodynamics

Go Specific Heat Capacity in Thermodynamics = Change in Heat Energy/Mass of the Substance

Internal Energy using Equipartition Energy

Go Internal Energy using Equipartition Energy = 1/2*[BoltZ]*Temperature of Gas

Heat Energy given Internal Energy

Go Change in Heat Energy = Internal Energy of the System+(Work Done given IE)

Internal Energy of System

Go Internal Energy of the System = Change in Heat Energy-(Work Done given IE)

Heat Capacity in Thermodynamics

Go Heat Capacity of the System = Change in Heat Energy/Change in Temperature

Heat Energy given Heat Capacity

Go Change in Heat Energy = Heat Capacity of the System*Change in Temperature

Work Done given Internal Energy

Go Work Done given IE = Change in Heat Energy-Internal Energy of the System

Internal Energy of Triatomic Non Linear System

Go Internal Energy of Polyatomic Gases = 6/2*[BoltZ]*Temperature given U

Internal Energy of Triatomic Linear System

Go Internal Energy of Polyatomic Gases = 7/2*[BoltZ]*Temperature given U

Internal Energy of Monoatomic System

Go Internal Energy of Polyatomic Gases = 3/2*[BoltZ]*Temperature given U

Internal Energy of Diatomic System

Go Internal Energy of Polyatomic Gases = 5/2*[BoltZ]*Temperature given U

Efficiency of Carnot Engine

Go Efficiency of Carnot Engine = 1-(Low Temperature/High Temperature)

Work Done by System in Adiabatic Process

Go Work Done by the System = External Pressure*Small Volume Change

Efficiency of Carnot Engine given Energy

Go Efficiency of Carnot Engine = 1-(Sink Energy/System Energy)

Work Done in Irreversible Process

Go Irreversible Work Done = -External Pressure*Volume change

Efficiency of Heat Engine

Go Efficiency of Heat Engine = (Heat Input/Heat Output)*100

Pressure given Enthalpy and Internal Energy Formula

Pressure = (Change in Enthalpy in the System-Change in Internal Energy of the System)/Small Volume Change
p = (dH-dU_c)/dV_small

What is difference between enthalpy and heat?

Heat is a transfer of energy due to a temperature difference. Enthalpy is the change in the amount of heat in a system at constant pressure. Remember that for these terms, you can only use heat and enthalpy interchangeably if there is no work being done to the system.

How to Calculate Pressure given Enthalpy and Internal Energy?

Pressure given Enthalpy and Internal Energy calculator uses Pressure = (Change in Enthalpy in the System-Change in Internal Energy of the System)/Small Volume Change to calculate the Pressure, Pressure given Enthalpy and Internal Energy formula is defined as is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Pressure is denoted by p symbol.

How to calculate Pressure given Enthalpy and Internal Energy using this online calculator? To use this online calculator for Pressure given Enthalpy and Internal Energy, enter Change in Enthalpy in the System (dH), Change in Internal Energy of the System (dU_c) & Small Volume Change (dV_small) and hit the calculate button. Here is how the Pressure given Enthalpy and Internal Energy calculation can be explained with given input values -> 75 = (2000-500)/0.2.

FAQ

What is Pressure given Enthalpy and Internal Energy?

Pressure given Enthalpy and Internal Energy formula is defined as is the force applied perpendicular to the surface of an object per unit area over which that force is distributed and is represented as p = (dH-dU_c)/dV_small or Pressure = (Change in Enthalpy in the System-Change in Internal Energy of the System)/Small Volume Change. Change in Enthalpy in the System is the thermodynamic quantity equivalent to the total difference between the heat content of a system, Change in Internal Energy of the System is defined as all the energy within a given system, including the kinetic energy of molecules and the energy stored in all of the chemical bonds & Small Volume Change is the indicator that shows whether or not a volume trend is developing in either an up or down direction.

How to calculate Pressure given Enthalpy and Internal Energy?

Pressure given Enthalpy and Internal Energy formula is defined as is the force applied perpendicular to the surface of an object per unit area over which that force is distributed is calculated using Pressure = (Change in Enthalpy in the System-Change in Internal Energy of the System)/Small Volume Change. To calculate Pressure given Enthalpy and Internal Energy, you need Change in Enthalpy in the System (dH), Change in Internal Energy of the System (dU_c) & Small Volume Change (dV_small). With our tool, you need to enter the respective value for Change in Enthalpy in the System, Change in Internal Energy of the System & Small Volume Change 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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