An ideal gas undergoes an adiabatic process while doing 25 J of work. What is the change in the internal (thermal) energy of the gas?
A) 50 J B) -25 J C) 0 J D) 25 J E) -50 J
B
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Refer to the data in the introduction. Rank the seasons for the Southern Hemisphere based on Earth’s distance from the Sun when each season begins, from closest to farthest.
What will be an ideal response?
A sealed container holds 0.020 moles of ideal nitrogen (N2 ) gas, at a pressure of 1.5 atm and a temperature of 290 K. The atomic mass of nitrogen is 14.0 g/mol
How many molecules of nitrogen are in the container? (R = 8.31 J/mol ? K, 1 atm = 101 kPa) A) 1.5 × 1021 mol B) 3.0 × 1021 mol C) 6.0 × 1021 mol D) 1.2 × 1022 mol E) 2.4 × 1022 mol
You hold a tennis racket in your hand. On top of the racket you have balanced a ball. Which statement is true?
a. The force of your hand on the racket and the force of the ball on the racket are equal and opposite. b. The force of the racket on your hand and the force of the ball on the racket are equal and opposite. c. The force of your hand on the racket and the force of the racket on the ball are equal and opposite. d. The force of the racket on your hand and the force of the racket on the ball are equal and opposite. e. The force of your hand on the racket and the force of the racket on your hand are equal and opposite.
Pulverized rock is believed to make up the Moon's
a. rays. b. craters. c. rills. d. plains (maria).