Chemistry
Calculate the following :
The temperature to which a gas 'P' has to be heated to triple it's volume, if the gas originally occupied 150 cm3 at 330 K [pressure remaining constant].
Gas Laws
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Answer
V1 = Initial volume of the gas = 150 cm3
T1 = Initial temperature of the gas = 330 K
T2 = Final temperature of the gas = ?
V2 = Final volume of the gas = 3 x 150 cm3 = 450 cm3
By Charles's Law:
Substituting the values :
Final temperature in °C = 990 - 273 = 717°C
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Fill in the blanks with the correct word, from the words in bracket :
- If the temperature of a fixed mass of a gas is kept constant and the pressure is increased, the volume correspondingly ………….. [increases/decreases]
- If the pressure of a fixed mass of a gas is kept constant and the temperature is increased, the volume correspondingly ………….. [increases/decreases]
- 1 dm3 of a gas is equal to ………….. [1 litre / 100 ml. / 100 cc.]
- All the temperatures on the kelvin scale are in ………….. figures [negative/positive]
- At -273°C the volume of a gas is theoretically ………….. [272 cc. / 0 cc. /274 cc.]