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Tag: calculations

Enthalpy Change Calculation

November 8, 2014January 28, 2021 Surfguppy1 CommentThermodynamics
Propane combustion

Propane Combustion

When 0.5 g of propane is burned, the heat produced is used to raise the temperature of 100 cm³ of water from 20ºC to 40ºC. Calculate the enthalpy change (ΔH) for the reaction. Given the density of water is 1 g/cm³ and specific heat capacity of water is 4.18 kJ/(kg•C).… Read the rest

calculations

Gibb’s Free Energy – Ammonia

May 8, 2014December 1, 2020 SurfguppyLeave a commentThermodynamics
The Haber process to manufacture ammonia using nitrogen and hydrogen is given by the equation below:
The Haber process equation
Calculate Gibb’s free energy change (ΔG) at 298 K temperature.
Given the entropy change (ΔS): -198 J K⁻¹ mol⁻¹
Enthalpy change (ΔH): -92 kJ

The Haber Process is a process of manufacturing ammonia in a factory.… Read the rest

calculations
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