1989
The above graph shows a typical heating curve from the solid phase through the liquid phase to the gaseous phase of a substance. Which part of the curve shows solid and liquid in equilibrium?
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1989 JAMB UTME Chemistry Past Questions
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1989
If in the graph above 1 dm3 of a saturated solution of KCL is cooled from 80oC, the mass of crystals deposited will be [K = 39, Cl = 35.5]
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1989
The above diagram gives the potential energy profile of the catalyst and uncatalysed reactions of X(g) + Y(g) → XY(g). Deduce the respective activation energies in KJ of the catalysed and uncatalysed reverse reactions: X…
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1989
Which of the curves in the above graph illustrates the behaviour of an ideal gas?
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1989
In the above set up substances X and Y are respectively
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1989
What is the IUPAC name for the compound?
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1989
Use the figure above to answer this question. Which of the following is NOT a monomer?
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1989
Use the figure above to answer this question. Which of the following compounds is an isomer of the compound
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1989
COg + H2Og \(\to\) 2g + H2g \(\Delta\)H = -4100J. Which of the following factors favour the formation of hydrogen in the above reaction? i. high pressure. ii. low pressure iii. high temperature iv. use of excess steam
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