Work Done by a Gas: The figure shows a pV diagram for an ideal gas that is carried around a cyclic process. How much work is done in one cycle if p0 = 4.00 atm and V0 = 3.00 L? (1.00 atm = 101 kPa)
A. 1210 J
B. 485 J
C. 2280 J
D. 2420 J
E. 4850 J
Answer: A
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Indicate whether the statement is true or false
Estimate the distance (in cm) between the central bright region and the third dark fringe on a screen 5.00 m from two double slits 0.500 mm apart illuminated by 500-nm light
a. 3.47 b. 2.15 c. 1.75 d. 1.50 e. 1.25
Latent Heats: A substance has a melting point of 20°C and a heat of fusion of 3.4 × 104 J/kg. The boiling point is 150°C and the heat of vaporization is 6.8 × 104 J/kg at a pressure of one atmosphere. The specific heats for the solid, liquid, and gaseous phases are 600 J/kg ? K (solid), 1000 J/kg ? K (liquid), and 400 J/kg ? K (gaseous). How much heat is required to raise the temperature of 1.90 kg of this substance from -4°C to 106°C at a pressure of one atmosphere?
A. 260 kJ B. 190 kJ C. 230 kJ D. 92 kJ E. 320 kJ