When you use the Format parameter, Windows PowerShell gets only the properties of the DateTime object that it needs to display the date in the format that you specify. As a result, some of the properties and methods of DateTime objects might not be available.y default, the date-time is displayed in long-date and long-time formats for the system locale. When you pipe a date to cmdlets that expect string input, such as the Add-Content cmdlet, Windows PowerShell converts the DateTime object to a string before adding it to the file.
= 1211 kJ mol-1. Therefore the molar heat of combustion of ethanol is 1211 kJ mol-1 (The molar enthalpy of combustion of ethanol is 1211 kJ mol-1). (Note that the enthalpy change for the reaction is negative because the reaction is exothermic, so the enthalpy change for the reaction is -1211 kJ mol-1, ÎH = - 1211 kJ mol-1)
That entire reaction has the following values â H = -277.69 kJ/mol â G = -174.78 kJ/mol Standard Reactions of Formation â H Â°rxn = â n â H Â° f (products) - â n â H Â°f (reactants) McCord Â© 11/2005Now we can just use â H Â°f values for any reaction now.hat entire reaction has the following values â H = -277.69 kJ/mol â G = -174.78 kJ/mol Standard Reactions of Formation â H Â°rxn = â n â H Â° f (products) - â n â H Â°f (reactants) McCord Â© 11/2005Now we can just use â H Â°f values for any reaction now.