You are given a frozen sample of an unknown substance. The sample has a temperature of 4K and a mass of 10g. You put the frozen sample in a closed container of volume 10L and heat it slowly to 120degC. At this point, the complete sample has evaporated and is in the gas phase. You measure a pressure of 117kPa inside the container. Which substance is it?

You are given a frozen sample of an unknown substance. The sample has a temperature of 4K and a mass of 10g. You put the frozen sample in a closed container of volume 10L and heat it slowly to 120degC. At this point, the complete sample has evaporated and is in the gas phase. You measure a pressure of 117kPa inside the container. Which substance is it?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter16: Temperature And The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 28P

See similar textbooks

Similar questions

A sealed cubical container 20.0 cm on a side contains a gas with three times Avogadros number of neon atoms at a temperature of 20.0C. (a) Find the internal energy of the gas. (b) Find the total translational kinetic energy of the gas. (c) Calculate the average kinetic energy per atom, (d) Use Equation 10.13 to calculate the gas pressure. (e) Calculate the gas pressure using the ideal gas law (Eq. 10.8).
A gas is in a container of volume V0 at pressure P0. It is being pumped out of the container by a piston pump. Each stroke of the piston removes a volume Vs through valve A and then pushes the air out through valve B as shown in Figure P19.74. Derive an expression that relates the pressure Pn of the remaining gas to the number of strokes n that have been applied to the container. FIGURE P19.74
(a) An ideal gas occupies a volume of 1.0 cm3 at 20.C and atmospheric pressure. Determine the number of molecules of gas in the container, (b) If the pressure of the 1.0-cm3 volume is reduced to 1.0 1011 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?
A cylinder with a piston holds 0.50 m3 of oxygen at an absolute pressure of 4.0 atm. The piston is pulled outward, increasing the volume of the gas until the pressure drops to 1.0 atm. If the temperature stays constant, what new volume does the gas occupy? (a) 1.0 m3 (b) 1.5 m3 (c) 2.0 m3 (d) 0.12 m3 (e) 2.5 m3
(a) An ideal gas occupies a volume of 1.0 cm3 at 20.C and atmospheric pressure. Determine the number of molecules of gas in the container, (b) If the pressure of the 1.0-cm3 volume is reduced to 1.0 1011 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?
A hollow aluminum cylinder 20.0 cm deep has an internal capacity of 2.000 L at 20.0C. It is completely filled with turpentine at 20.0C. The turpentine and the aluminum cylinder are then slowly warmed together to 80.0C. (a) How much turpentine overflows? (b) What is the volume of the turpentine remaining in the cylinder at 80.0C? (c) If the combination with this amount of turpentine is then cooled back to 20.0C, how far below the cylinders rim does the turpentines surface recede?
You are using a 680 W microwave to heat 700 mL of olive oil. If the initial temperature of the oil is 18 C, what is the temperature after 2 minutes in the microwave? Assume the microwave is 88% efficient. Express this temperature in Celsius. Use 1.97 J/gK for the specific heat of olive oil. The specific gravity is 0.915.
A 0.5 m3 container holds 50 mol of an unknown gas at a temperature of 25 °C. A piston is used to expand the volume of the chamber to 1.0 m3 without changing the temperature of gas. What is the pressure in the container now (in kPa)? The piston is again used to change the volume of the container (without changing the temperature). After doing so the pressure in the container is 496 kPa. What is the volume of the container (in m3)?
A sealed container with volume V= 89.0m3 is filled with n= 6.00 x 103mol of oxygen gas (O2) at an initial temperature of Ti= 2.70 x 102K. The gas is heated to a final temperature of 3.50 x 102K. The atomic mass of an oxygen molecule O2 is 32.0g/mol. a) What is the initial pressure of the gas? b) What is the final pressure?
A cylindrical tank with a diameter of 1.0 m and a length of 3.0 m holds oxygen gas (O2) at a temperature of 18◦ C. If the pressure of the gas is 1.0 × 106 Pa, how many oxygen atoms are in the tank?
A weather balloon contains 12.0 m³ of hydrogen gas when the balloon is released from a location at which the temperature is 30.0°C and the pressure is 80.0 kPa. The balloon rises to a location where the temperature is -10.0°C and the pressure is 20.0 kPa. If the balloon is free to expand so that the pressure of the gas inside is equal to the ambient pressure, what is the new volume of the balloon? Assume that in both cases the hydrogen gas is in thermal equilibrium with the outside air. O 14.0 m³ 4.16 m³ 16.0 m³ 41.7 m³ 2.38 m³
A rigid tank contains an amount of argon at a pressure of 12.2 atm and a temperature of 23.0°C. Two-thirds of the gas is withdrawn from the tank, while the temperature of the remainder is raised to 36.8°C. What is the new pressure (in atm) of the gas remaining in the tank? atm