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  1. Nitrogen gas is kept in a flexible container that keeps its pressure constant. The volume of the nitrogen gas is 165 cm3 at 25°C. The gas is then warmed to 109°C. In cubic centimeters, what will be the new volume of the nitrogen gas? Round your answer to the nearest whole number
  2. A lantern bulb draws 21 W of power when it is connected to a 12 V battery. In ohms, what must be the resistance of the bulb? Round your answer to the nearest whole number.
  3. A microwave oven draws 6 A when supplied with 120 V. The microwave is subsequently used for 1 minutes to pop a bag of popcorn. In joules, how much electrical energy does the microwave use while popping? Round your answer to the nearest whole number.

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