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29 October, 12:25

43. Which temperature change would cause a sample of an ideal gas to double in volume while the pressure is held constant? (1) from 400. K to 200. K

(2) from 200. K to 400. K

(3) from 400. oC to 200. oC

(4) from 200. oC to 400. oC

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  1. 29 October, 12:48
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    This question may be answered by looking at the equation for ideal gases. The ideal gas equation is pV = nRT. Which implies that If pressure is constant (n is constant if the amount of gas is not changed and R is the Universal Constant of Gases), then V / T is constant. Then if V is doubled T is also doubled. Then the answer is the option (2) from 200K to 400K ...
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