Question 34
Question 34 of 40
Question image for Q34
Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
7. Equilibria
7.1. Chemical equilibria: reversibl...

state whether changes in temperature, concentration or pressure or the presence of a catalyst affect the value of the equilibrium constant for a reaction

5. Chemical energetics
5.1. Enthalpy change, \(\Delta H\)

understand that chemical reactions are accompanied by enthalpy changes and these changes can be exothermic (\(\Delta H\) is negative) or endothermic (\(\Delta H\) is positive)