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Thermodynamics Quiz True or False

1. To pop a balloon without adding any extra air you should: -> Decrease the temperature of the gas in the balloon
2. 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 K
3. 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? -> 8333 °C
4. How much heat is required to increase the temperature of 500 g of water by 80 °C? The specific heat capacity of water is . -> 167440 J
5. 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? -> 45.2 × 105 J
6. Which of the following is true for a fixed amount of gas? -> PT = constant
7. Which of the following is true for a gas at constant temperature? ->
8. When a gas is heated, ______________. -> the internal energy of the gas decreases
9. Heat is ______________. -> always increasing in the universe
10. What is the average kinetic energy of an oxygen molecule at 37 °C? -> 7.66 × 10-22 J

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