Answer:
b) 99 kPa
Explanation:
According to Daltons law of partial pressure, the total pressure of a mixture of two or more non reactive gases is the sum of their individual pressures. Let the total pressure of a mixture of n number of gases be and their individual pressure be , According to Daltons partial pressure law:
Since A glass cylinder contains 2 gases at a pressure of 106 kPa, therefore n = 2. Also one gas () is at 7 kPa. Using Daltons partial pressure law:
The answer is; C
Due to the intense heat and pressure on the rocks, they undergo physical and chemical changes and become new types of rocks called metamorphic rocks. An example of this change is that small crystals may be squeezed into large crystals and the crystals may be rearranged.