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In thermodynamics, the number 298 K is significant because it represents the standard temperature at which many chemical reactions and physical processes are studied. This temperature is commonly used as a reference point for calculating various thermodynamic properties and is often used in equations and formulas to analyze and predict the behavior of systems.

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5mo ago

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A cylinder contains 28.5 L of Oxygen Gas at a pressure of 1.8 ATM and a temperature of 298 K How much gas in mols is in the cylinder?

You must use the perfect gas law, which states that PV=nRTP= pressureV= volumen= number of molesR= universal gas constantT= temperaturerearranging the equation to solve for n we get n= PV/RTso n= 1.8(28.5)/8.314(298)n= 51.3/2477.572n= 0.021.09


What is the velocity of hydrogen at 298 K?

The average velocity of hydrogen molecules at 298 K can be calculated using the root mean square velocity formula, v = √(3kT/m), where k is the Boltzmann constant, T is the temperature in Kelvin, and m is the mass of a hydrogen molecule. The average velocity of hydrogen at 298 K would be around 1926 m/s.


Which equation represents an exothermic reaction at 298 K?

An exothermic reaction is one where heat is released to the surroundings. An example of an exothermic reaction equation at 298 K is: 2H2(g) + O2(g) -> 2H2O(l) + heat


What form a spontaneous reaction at 298 K?

A spontaneous reaction at 298 K is one in which the Gibbs free energy change (ΔG) is negative. This means that the reaction is energetically favorable and will proceed in the forward direction without the need for external energy input.


Which direction of the reaction is favored at 298 K?

At 298 K, the direction of a reaction is favored based on whether it is exothermic or endothermic. If the reaction is exothermic, it is favored in the direction that consumes heat, while for an endothermic reaction, it is favored in the direction that produces heat. The reaction will proceed in the direction that helps to minimize the overall energy of the system.