(Answered) Large helium-filled balloons are used to lift scientific

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Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºC and rises to an altitude where its volume is twenty times the original volume and its temperature is - 50.0ºC ? (b) What is the gauge pressure? (Assume atmospheric pressure is constant.

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