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When an element can exist in two or more forms in the same physical state, the element is said to exhibit
Given that for the reaction KOH (aq) + HCI(aq) → KCI(aq) + H2O(L) H = - 54 Kj mol-1. What is the quantity of heat involved in the reaction?2NaOH(aq) + H2SO 4(aq) → Na2SO4(aq) + 2H 2O(l)?
The following are miscible with water except
120cm\(^3\) of hydrogen were sparked with 60cm\(^3\) of oxygen at 110\(^o\)C. What was the volume of steam produced? The equation for the reaction is
2H\(_2\)(\(_g\) + O\(_2\)(\(_g\) → 2H\(_2\)O\(_g\)
The major raw material in a plastic industry is
CO(g) + H\(_2\)O(g) \(\to\) \(CO_{2g}\) + H\(_2\)(g) \(\Delta\)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
What is the IUPAC name for the compound
Use the figure above to answer this question. Which of the following is NOT an isomer of the compound?
Use the figure above to answer this question. Which of the following compounds is an isomer of the compound
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 dm 3 of a saturated solution of KCL is cooled from 80°C, 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: XY(g) → X(g) + Y(g)