Question

The temperature used in the ideal gas law must be expressed in a. Celsius b. Fahrenheit c. Kelvin d. Pascale e. Any of the above 680 Fahrenheit is equivalent to a. 273 Kelvin b. 298 Kelvin c. 0 Celsius d. 212° Fahrenheit e. None of the above Which has more mass, a mole of Nitrogen and a mole of Hydrogen a. 1. 2. 3. Nitroger b. Hydrogen c. Both have same mass d. Neither has any mass 4. Two identical cylinders at the same pressure contain the same gas. If A contains the 2 times as much gas as B, then a. The temperature of A is the temperature of B b. The temperature of A is 2 times the temperature of B Both have same temperature d. The temperatures are O°C and OK respectively c. -273°C is equal to a. -40 K b. -40°F c. Absolute zero d.0% e, c and d above f. None of the above 5. 6. If a thin copper plate with a hole in the center is heated a. The hole gets smaller b. The hole gets bigger c. The hole size remains the same The hole closes d. The ratio of final pressure to initial pressure for a perfect gas if the volume is reduced to one half its original volume is a. 0.5 b. 1.0 c. 1.5 7.

Answer 1

temperature in ideal gas law is measured in Kelvin

680 F = 633.15 K = 360 Celsius

1 mole of Nitrogen has more mass than 1mole of hydrogen

Temperature of A is half the temperature of B as number of moles is inversely proportional to the temperature of gas for constant pressure and volume

-273 celsius = 0 kelvin

the hole gets smaller if copper is heated as metals expands on heating

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