Think you’ve got your head wrapped around Thermodynamics? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. To pop a balloon without adding any extra air you should:
Decrease the temperature of the gas in the balloon
Hold the balloon
Increase the temperature of the gas in the balloon
Shake the balloon back and forth very quickly
Decrease the internal energy of the gas in the balloon
Q. There are 5 moles of a gas at a pressure of 2 × 105 Pa, and the gas takes up a volume of 2.5 × 10-3 m3. What is the temperature of this gas?
12 °C
24 K
12 K
48 °C
0 °C
Q. How much of an increase in temperature is required to increase the length of a 10 m steel rod with a coefficient of linear expansion of by 1 m?
12 × 10-6 °C
8333 K
833333 K
833333 °C
8333 °C
Q. How much heat is required to increase the temperature of 500 g of water by 80 °C? The specific heat capacity of water is .
7.39 × 108 J
738829 J
1.67 × 108 J
167440 J
There is not enough information to determine the heat required.
Q. The latent heat of vaporization of water is . How much heat should be added to 2 kg of water at 100 °C to completely evaporate it?
4520 × 105 J
45.2 × 105 J
2260 × 105 J
22.6 × 105 J
45.2 × 103 J
Q. Which of the following is true for a fixed amount of gas?
PT = constant
PV = constant
Q. Which of the following is true for a gas at constant temperature?
PV = constant
PT = constant
Q. When a gas is heated, ______________.
the average kinetic energy of its molecules decreases
the gas contracts
the internal energy of the gas decreases
the average kinetic energy of its molecules increases
the number of moles of gas increases
Q. Heat is ______________.
a measure of temperature
a measure of the total internal energy of a system
energy that flows from a high temperature reservoir to a low temperature reservoir
energy that flows from a low temperature reservoir to a high temperature reservoir
always increasing in the universe
Q. What is the average kinetic energy of an oxygen molecule at 37 °C?
7.66 × 10-22 J
6.42 × 10-21 J
We need to know how many moles of the gas are present to answer this question.
We need to know the pressure to answer this question.
We need to know the mass of an oxygen molecule.