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1. An ideal gas at 20 °C consists of 2.2 x 10^22 atoms. 3.8 JJ of thermal energy are removed from the gas. What is the new temperature in °C?

1. An ideal gas at 20 °C consists of 2.2 x 10^22 atoms. 3.8 JJ of thermal energy are removed from the gas. What is the new temperature in °C?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. An ideal gas at 20 °C consists of 2.2 × 10^22 atoms. 3.8 JJ of thermal energy are removed from the gas. What is the new temperature in °C? 2. 33 g of copper pallets are removed from a 300°C oven and immediately dropped into 100 mL of water at 21 °C in an insulated cup. 3. a lowest pressure ever obtained in a laboratory setting is 4.0 x 10^-11 Pa. At this pressure, how many molecules of air would there be in a 20°C experimental chamber with a volume of 0.020 m^3? 4. 0.23 mol of argon gas is admitted to an evacuated 20 cm^3 container at 20°c. The gas then undergoes an isochoric heating to a temperature of 200°c. what is the final pressure of the gas? 5. The length of a steel beam increases by 0.72 mm when its temperature is raised from 22°C to 35°c. What is the length of the beam at 22 °C? 6. a 2.1 cm thick floor covers a 4.0 m x 5.5 m room. The subfloor on which the flooring sits is at a temperature of 16.3 °C, while the air in the room is at 19.4 °C. What is the rate of heat conduction through the floor? Use 0.200 W/m * K for the thermal conductivity of wood.
Transcribed Image Text:1. An ideal gas at 20 °C consists of 2.2 × 10^22 atoms. 3.8 JJ of thermal energy are removed from the gas. What is the new temperature in °C? 2. 33 g of copper pallets are removed from a 300°C oven and immediately dropped into 100 mL of water at 21 °C in an insulated cup. 3. a lowest pressure ever obtained in a laboratory setting is 4.0 x 10^-11 Pa. At this pressure, how many molecules of air would there be in a 20°C experimental chamber with a volume of 0.020 m^3? 4. 0.23 mol of argon gas is admitted to an evacuated 20 cm^3 container at 20°c. The gas then undergoes an isochoric heating to a temperature of 200°c. what is the final pressure of the gas? 5. The length of a steel beam increases by 0.72 mm when its temperature is raised from 22°C to 35°c. What is the length of the beam at 22 °C? 6. a 2.1 cm thick floor covers a 4.0 m x 5.5 m room. The subfloor on which the flooring sits is at a temperature of 16.3 °C, while the air in the room is at 19.4 °C. What is the rate of heat conduction through the floor? Use 0.200 W/m * K for the thermal conductivity of wood.
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