Standard Temperature and Pressure Video Lessons

Concept: Understanding Standard State Conditions

# Problem: A sample of helium (He) occupies 4 liters at STP. What pressure is necessary to change the volume to 2 liters at 20°C? 1. 2.1464 atm 2. 2.0 atm 3. 2.36 atm 4. 4.361 atm 5. 4.0 atm

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###### Problem Details

A sample of helium (He) occupies 4 liters at STP. What pressure is necessary to change the volume to 2 liters at 20°C?

1. 2.1464 atm

2. 2.0 atm

3. 2.36 atm

4. 4.361 atm

5. 4.0 atm

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