Question

A mixture of two gases p and Q occupying volume 300cm^3 and 100cm^3 respectively exert a total pressure of 800mmHg. What is the partial pressure of Q.

Answer 1

Answer:

Imagine filling a rigid container attached to a pressure gauge with gas and then sealing the container so that no gas may escape. If the container is cooled, the gas inside likewise gets colder and its pressure is observed to decrease. Since the container is rigid and tightly sealed, both the volume and number of moles of gas remain constant. If we heat the sphere, the gas inside gets hotter (Figure 2) and the pressure increases.

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