1. A sample of krypton gas occupies a volume of 9.48 L at 61.0°C and 407 torr. If the volume of the gas sample is increased to 12.2 L, while its temperature is decreased to 5.0°C, the resulting gas pressure will be what torr?
2. A sample of carbon dioxide gas at a pressure of 0.972 atm and a temperature of 225 °C, occupies a volume of 520 mL. If the gas is heated at constant pressure until its volume is 739 mL, the temperature of the gas sample will be what °C?
3.A sample of helium gas at a pressure of 0.645 atm and a temperature of 22.4 °C, occupies a volume of 18.6 liters. If the gas is allowed to expand at constant temperature to a volume of 33.0 liters, the pressure of the gas sample will be how much atm?
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