Questions and Answers
A gas at 273 K and 1 atm occupies 10 liters. If the temperature is increased to 546 K, what will the new volume be if the pressure remains constant?
What is the volume of a gas at 600 K if its volume is 10 liters at 300 K and the pressure remains constant?
What is the temperature in Kelvin for a reading of 30°C?
If a temperature reading is -18°C, what is it in Fahrenheit?
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At what temperature in Fahrenheit does a scientist observe -40°C?
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What is the Fahrenheit conversion of 100°C?
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Study Notes
Celsius to Fahrenheit and Kelvin Conversions
- Conversion formulas:
- Fahrenheit (°F) = (°C × 9/5) + 32
- Kelvin (K) = °C + 273.15
- At 25°C:
- Equivalent to 77°F and 298.15K
- At -40°C:
- Equivalent to -40°F and 233.15K
- At 100°C:
- Equivalent to 212°F and 373.15K
- At 30°C:
- Equivalent to 86°F and 303.15K
- At -18°C (freezer temperature):
- Equivalent to -0.4°F and 255.15K
- Average body temperature:
- 37°C is equal to 98.6°F and 310.15K
Ideal Gas Laws Problems
- Volume decreases when pressure increases (Boyle's Law):
- 4 liters at 1 atm becomes 2 liters at 2 atm, temperature constant.
- Volume increases with temperature at constant pressure (Charles's Law):
- 10 liters at 300 K becomes 20 liters at 600 K.
- Pressure increases with temperature at constant volume (Gay-Lussac's Law):
- 3 atm at 150 K becomes 6 atm at 300 K.
- At constant temperature, volume increases as pressure decreases:
- 5 liters at 2 atm expands to 10 liters at 1 atm.
- Volume at constant temperature varies with temperature rise:
- 3 liters at 200 K expands to 6 liters at 400 K.
- Cooling a gas from 400 K to 200 K decreases volume from 6 liters to 3 liters.
Ideal Gas Laws with Temperature Conversion
- Gas at 20°C occupies 10 liters at 1 atm, raising to 40°C leads to a new volume of 12 liters.
- Temperature conversions to Kelvin are crucial for accurate calculations:
- -50°C to 50°C leads to pressure increase from 1 atm to 2 atm.
- A gas retains its volume of 5 liters when changing from 0°C to 273 K at 1 atm.
- Changing temperature from 30°C to 60°C impacts volume significantly under constant pressure.
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Description
Test your knowledge of temperature conversion between Celsius, Fahrenheit, and Kelvin scales. Solve problems to convert temperatures from one scale to another.
