Part 1: Air at 1 atm and 200° C occupies an initial volume Vi of 1000...
Part 1: Air at 1 atm and 200° C occupies an initial volume Vi of 1000 cm3 in a cylinder. The air is confined by a piston which has a constant restraining force so that the gas pressure remains constant. Heat is added to the air until its temperature reaches 2600° C.
- Calculate the heat added
- Calculate the work done by the gas
- Calculate the change in internal energy of the gas
Part 2: An ideal gas is contained in a closed assembly with an initial pressure Pi of 220 kPA and initial temperature Ti of 70oC. If the volume of the system is increased to 1.5 times the initial volume and the temperature drops to 15o C, determine the final pressure of the gas.
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Part 1: Air at 1 atm and 200° C occupies an initial volume
Vi of 1000...
Q-1 Air at 1 atm and 20 0C occupies an initial volume of 1000 cm3 in...
Q-1 Air at 1 atm and 20 0C occupies an initial volume of 1000 cm3 in a cylinder. The air is confined by a piston which has a constant restraining force so that the gas pressure always remains constant. Heat is added to the air until its temperature reaches 260 0C. Calculate (a) the heat added (b) the work done by the gas, (c) the change in internal energy of the gas. Q-2 An ideal gas is contained in a...
A system of ideal gas has an initial pressure of 114 kPa and occupies a volume...
A system of ideal gas has an initial pressure of 114 kPa and occupies a volume of 6.00 liters. Doubling the system’s absolute temperature by means of a constant-pressure process would require an amount of work W. Instead, you decide to double the absolute temperature by carrying out two processes in sequence, a constant-pressure process followed by a constant-volume process. In this case, the total work done in the two-process sequence is W/2. Calculate the final pressure of the system....
(a) A piston at 6.1 atm contains a gas that occupies a volume of 3.5 L....
(a) A piston at 6.1 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.72 L? _____________ atm (b) A piston at -51.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 4.4 L at constant pressure? ______________ °C (c) A piston at 4895 torr...
(a) A piston at 5.5 atm contains a gas that occupies a volume of 3.5 L....
(a) A piston at 5.5 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.73 L? atm (b) A piston at 46.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 5.4 L at constant pressure? °C (c) A piston at 2795 torr contains a...
(a) A piston at 5 atm contains a gas that occupies a volume of 3.5 L....
(a) A piston at 5 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 1.05 L? _________atm (b) A piston at 30.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 6.2 L at constant pressure? ________°C (c) A piston at 2145 torr contains a...
(a) A piston at 4.9 atm contains a gas that occupies a volume of 3.5 L....
(a) A piston at 4.9 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.81 L? atm (b) A piston at 81.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 7.1 L at constant pressure? °C (c) A piston at 7345 torr contains a...
A piston at 1.1 atm contains a gas that occupies a volume of 3.5 L. What...
A piston at 1.1 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.38 L? (b) A piston at 40.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 7.4 L at constant pressure? (c) A piston at 445 torr contains a gas that occupies...
1. Air in a cylinder with a volume of 500 cm3 is compressed by a piston...
1. Air in a cylinder with a volume of 500 cm3 is compressed by a piston to a volume of 150 cm3. If the initial air pressure is 5 x 104 Pa (N/m2), what is the pressure in the cylinder after compression? (Assume that this is a slow process, and that T remains constant.) 8. The sample of gas in Question 2 is contained in a rigid closed container. If the pressure of the gas is 1013 mb at 20°C, what...
A mole of air occupies 5.0 L at 396 ◦C in a cylinder with a piston...
A mole of air occupies 5.0 L at 396 ◦C in a cylinder with a piston that exerts constant force. 4.4 kJ of heat is added. Air molecules are mostly diatomic. Use the values of CV and CP for an ideal gas rather than values from the internet or the textbook. Determine the (a) new volume, and (b) change in internal energy. If the piston is instead held in place at 5.0 L, determine the (c) new pressure. (a) 6.0,...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100 kPa pressure. The gas is now compressed to a final temperature of 95oC at 250 kPa. This compression is polytropic and follows PVn=constant. a. Determine how much boundary work was added to the gas [in kJ] b. How much heat was added or removed from this system during this process? [in kJ]
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