Calculate the pressure in bar of 2520 moles of hydrogen gas stored at 27∘C in the 180 L storage tank of a modern hydrogen-powered car. (Hint: 1 kPa=1000 Pa,1 bar=100,000 Pa.) Use 8.314L⋅kPaK⋅mol for R.

Explanation:

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answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.