<img alt="" class="alignnone size-full wp-image-237466" height="164" src="https://data.ulearngo.com/assets/9da752a5-2fee-4cdf-a3ac-13eafd75b7b1" width="300"/>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?

<img alt="" class="alignnone size-full wp-image-237468" height="145" src="https://data.ulearngo.com/assets/28b8245c-623c-4c6a-958d-79cdeede4487" width="300"/>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]

<img alt="" class="alignnone size-full wp-image-237469" height="143" src="https://data.ulearngo.com/assets/117f259a-318e-40ce-90c4-93b07cbd89c1" width="300"/>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: XY(g) → X(g) + Y(g)

<img alt="" class="alignnone size-full wp-image-237472" height="147" src="https://data.ulearngo.com/assets/877f7307-28b9-449b-b9fb-b90354a4f4e5" width="300"/>Which of the curves in the above graph illustrates the behaviour of an ideal gas?

<img alt="" class="alignnone size-full wp-image-237473" height="160" src="https://data.ulearngo.com/assets/5661a7c8-f005-4d08-af51-f500a06cdb88" width="300"/>In the above set up substances X and Y are respectively

<img alt="" class="alignnone size-full wp-image-237478" height="122" src="https://data.ulearngo.com/assets/275dfde3-328d-4d9f-aad0-f3f5a4e7a21d" width="289"/>What is the IUPAC name for the compound?

<img alt="" class="alignnone size-full wp-image-237479" height="300" src="https://data.ulearngo.com/assets/ac155476-2a7d-466e-9803-671940a00017" width="258"/>Use the figure above to answer this question. Which of the following is NOT a monomer?

<img alt="" class="alignnone size-full wp-image-237479" height="300" src="https://data.ulearngo.com/assets/4126fe13-f4d9-4c98-b7ef-9bfb7c1cf555" width="258"/>Use the figure above to answer this question. Which of the following compounds is an isomer of the compound

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

1989 JAMB UTME Chemistry Past Questions

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?

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]

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…

Which of the curves in the above graph illustrates the behaviour of an ideal gas?

In the above set up substances X and Y are respectively

What is the IUPAC name for the compound?

Use the figure above to answer this question. Which of the following is NOT a monomer?

Use the figure above to answer this question. Which of the following compounds is an isomer of the compound

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