QQuestionPhysics
QuestionPhysics
Which of the following is the definition of standard temperature and pressure?
A. 298 K and 1 atm
B. 0 K and 1 atm
C. 273ºC and 760 torr
D. 273 K and 1 atm
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Answer
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Step 1:I'll solve this step by step:
Step 2:: Understand Standard Temperature and Pressure (STP)
Standard Temperature and Pressure (STP) is a specific set of conditions used in scientific measurements and calculations. It defines a reference point for temperature and pressure.
Step 3:: Analyze the Given Options
Let's break down each option: A. 298 K and 1 atm B. 0 K and 1 atm C. 273ºC and 760 torr D. 273 K and 1 atm
Step 4:: Recall the Correct STP Definition
- Pressure: $$1 \mathrm{~atm}
The standard definition of STP is:
Step 5:: Evaluate the Options
A. 298 K is close to room temperature, not STP B. 0 K is absolute zero, not STP C. 273ºC is incorrect (units are wrong) D. 273 K (0ºC) and 1 atm matches the standard definition
Final Answer
D. 273 K and 1 atm is the correct definition of Standard Temperature and Pressure (STP).
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