Thermodynamics Quiz True or False
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1.
To pop a balloon without adding any extra air you should: -> Decrease the temperature of the gas in the balloon
True
False
2.
There are 5 moles of a gas at a pressure of 2 × 10
5
Pa, and the gas takes up a volume of 2.5 × 10
-3
m
3
. What is the temperature of this gas? -> 12 K
True
False
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
True
False
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
True
False
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 × 10
5
J
True
False
6.
Which of the following is true for a fixed amount of gas? ->
PT
= constant
True
False
7.
Which of the following is true for a gas at constant temperature? ->
True
False
8.
When a gas is heated, ______________. -> the internal energy of the gas decreases
True
False
9.
Heat is ______________. -> always increasing in the universe
True
False
10.
What is the average kinetic energy of an oxygen molecule at 37 °C? -> 7.66 × 10
-22
J
True
False
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