This equation is known as the ideal gas law, and it can be used to predict the behavior of many gases at relatively low pressure. from this equation, you can see that as the temperature of a gas increases, a) the pressure of the gas increases. b) the number of moles of gas will go down. c) either the pressure of the gas, the volume of the gas, or both, will increase. d) either the pressure of the gas, the volume of the gas, or both, will decrease.

The correct answer is 
C)either the pressure of the gas, the volume of the gas, or both, will increase.

In fact, the ideal gas law can be written as

where 
p is the gas pressure
V is its volume
n is the number of moles
R is the gas constant
T is the absolute temperature of the gas

We can see that if the temperature T increases, then the term on the right in the equation increases, therefore the term on the left should increase as well. In order for this to be possible, at least one between p and V should increase, or also both of them. Therefore, the correct answer is C.

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