Which of the following correctly represents the values for standard temperature and pressure (STP) in chemistry?

• A. 273 ext{ K} and 2 ext{ atm}
• B. 25^ext{o}C and 1 ext{ atm}
• C. 0^ext{o}C and 760 ext{ mmHg}
• D. 0^ext{o}C and 1 ext{ atm}

Answer: (D)

Verified step by step guidance

1. Understand that STP (Standard Temperature and Pressure) in chemistry is a set of conditions commonly used as a reference point for experiments and calculations involving gases.
2. Recall the standard temperature at STP is defined as 0 degrees Celsius, which can be converted to Kelvin using the formula \(T(K) = T(^\circ C) + 273.15\).
3. Recognize that the standard pressure at STP is 1 atmosphere (atm), which is equivalent to 760 millimeters of mercury (mmHg) or 101.325 kilopascals (kPa).
4. Evaluate each option by comparing the given temperature and pressure values to the standard values: 0 \(^\circ\)C (or 273 K) and 1 atm (or 760 mmHg).
5. Conclude that the correct representation of STP is the one that states 0 \(^\circ\)C and 1 atm, as this matches the universally accepted standard conditions in chemistry.