Answer the following questions in the space provided. If you wish, you may draw

Question

Answer the following questions in the space provided. If you wish, you may draw and la diagrams to aid in giving your answers. Where indicated, you must show your calculations to receive full credit for a correct answer. bel 26. At -253'C and at 1 atmosphere (atm) of pressure, hydrogen is in a liquid state. (In at the website assigned for Self- answering this question, you may find it helpful to look Check Test 23. You should, however, be able to answer this question based only on your study of Part 6.) (A) If you increase the pressure on hydrogen, what will happen to it? (Hint: from your textbook, what happens when you decrease pressure on a liquid? What can you conclude will happen if you increase pressure?) (B) Give two ways in which you could turn hydrogen into a gas.

Explanation / Answer

A) nothing happend on increasing pressure on liquid nitrogen, but the boiling temperature decreses
B) Two ways : Reduce pressure, increase temperature

22) B-> It occurs when vapour molcules lose their energy
C-> It results in warming
D-> It does not normally take place at the same time of evap.

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