Final answer:
The standard conditions for thermodynamics are a pressure of 1 atm and a temperature of 25 degrees Celsius. These conditions allow for consistent comparisons of thermodynamic properties and ensure that gases are at a pressure of 1 atm and pure substances are in their most stable form at a specified temperature.
Step-by-step explanation:
The standard conditions for thermodynamics are typically defined as a pressure of 1 atmosphere (atm) and a temperature of 25 degrees Celsius (298 kelvin).
This means that most thermochemical data is tabulated under these conditions.
Standard conditions allow for consistent comparisons of thermodynamic properties, such as enthalpy changes and enthalpies of formation.
These conditions ensure that gases are at a pressure of 1 atm and pure substances are in their most stable form at a specified temperature, usually 25 degrees Celsius (298 K).
Therefore, the correct answer to the given question is option C: X = 1, Y = 25.