Two kilomoles of carbon dioxide (СО2) gas are heated by 500C at constant pressure. Find: (1) the change in the internal energy of the gas; (2) the work of expansion; (3) the amount of heat received by the gas.
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Two kilomoles of carbon dioxide (СО2) gas are heated by 500C at constant pressure. Find:
(1) the change in the internal energy of the gas;
(2) the work of expansion;
(3) the amount of heat received by the gas.
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- An ideal gas initially at 325 K undergoes an isobaric expansion at 2.50 kPa. The volume increases from 1.00 m³ to 3.00 m³ and 12.2 kJ is transferred to the gas by heat. (a) What is the change in internal energy of the gas? KJ (b) What is the final temperature of the gas? KA gas expands from I to F in the figure below. The energy added to the gas by heat is 354 J when the gas goes from I to F along the diagonal path. P (atm) 4 3 EN B 1 0 1 2 A 3 4 F V (liters) (a) What is the change in internal energy of the gas? J (b) How much energy must be added to the gas by heat for the indirect path IAF to give the same change in internal energy? JSuppose 1.70 mol of oxygen is heated at a constant pressure of 1.00 atm from 10.0°C to 23.0°C. What is the magnitude of the work done by the gas during this expansion? The magnitude of the work done by the gas is J.
- A car tire contains 0.0390 m3 of air at a pressure of 2.20×105 N/m2 (about 32 psi). How much more internal energy does this gas have than the same volume has at zero gauge pressure (which is equivalent to normal atmospheric pressure)?An ideal gas initially at 340 K undergoes an isobaric expansion at 2.50 kPa. The volume increases from 1.00 m3 to 3.00 m3 and 12.6 kJ is transferred to the gas by heat. (a) What is the change in internal energy of the gas? kJ (b) What is the final temperature of the gas? KA sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 386 K. If 24.0 J of work is done by the gas during this process, what is the mass of helium present?
- A helium-filled toy balloon has a gauge pressure of 0.400 atm and a volume of 11.0 liters. How much greater is the internal energy (in J) of the helium in the balloon than it would be at zero gauge pressure?A cylinder of volume 0.320 m3 contains 10.5 mol of neon gas at 17.4°C. Assume neon behaves as an ideal gas. (a) What is the pressure of the gas? Pa(b) Find the internal energy of the gas. J(c) Suppose the gas expands at constant pressure to a volume of 1.000 m3. How much work is done on the gas? J(d) What is the temperature of the gas at the new volume? K(e) Find the internal energy of the gas when its volume is 1.000 m3. J(f) Compute the change in the internal energy during the expansion. J(g) Compute ΔU − W. J(h) Must thermal energy be transferred to the gas during the constant pressure expansion or be taken away? This answer has not been graded yet. (i) Compute Q, the thermal energy transfer. J(j) What symbolic relationship between Q, ΔU, and W is suggested by the values obtained?Three moles of a monatomic ideal gas are heated at a constant volume of 2.01 m³. The amount of heat added is 5.40 x 103 J. (a) What is the change in the temperature of the gas? (b) Find the change in its internal energy. (c) Determine the change in pressure. (a) Number i (b) Number i (c) Number i Units Units Units