QUESTION 6 (Start on a new page.) Initially 60,8 g pure carbon dioxide, CO2(g), is reacted with carbon, C(s), in a sealedcontainer of volume 3 dm3. The reaction reaches equilibrium at temperature Taccording to the following balanced equation: 6.1 Define the term chemical equilibrium. (2) 6.2 At equilibrium it is found that the concentration of … Read more
The siren of a police car, which is travelling at a constant speed along a straight horizontal road, emits sound waves of constant frequency. Detector P is placed inside the police car and detector Q is placed next to the road at a certain distance away from the car. The two detectors record the changes … Read more
SECTION D: POETRY In this section, questions are set on the following poems: ‘Spring’ by Gerard Manley Hopkins ‘Poem’ by Barolong Seboni NOTE: Answer the questions set on BOTH poems, i.e. QUESTION 6.1 AND QUESTION 6.2. QUESTION 66.1 Read the poem carefully and then answer the questions which follow.The number of marks allocated to each … Read more
The dissociation of iodine molecules to iodine atoms (I) is a reversible reaction takingplace in a sealed container at 727 °C. The balanced equation for the reaction is Kc for the reaction at 727 °C is 3,76 x 10-3 6.1 Write down the meaning of the term reversible reaction (1) 6.2 At equilibrium the pressure … Read more
The siren of a train, moving at a constant speed along a straight horizontal track, emitssound with a constant frequency. A detector, placed next to the track, records thefrequency of the sound waves. The results obtained are as shown in the graph below. 6.1 State the Doppler effect in words. (2) 6.2 Does the detector … Read more
6.1 In the diagram, P(—5 ; 12) and T lies on the positive x-axis. PÔT = 0 Answer the following without using a calculator: 6.1.1 Write down the value of tan0 (1) 6.1.2 Calculate the value of cos0 (3) 6.1.3 S(a, b) is a point in the third quadrant such that TÔS = 0 + … Read more
6.1 On 31 January 2020, Tshepo made the first of his monthly deposits of RI 000 into a savings account. He continues to make monthly deposits of RI 000 at the end of each month up until 31 January 2032. The interest rate was fixed at 7,5% p.a., compounded monthly 6.1.1 What will the investment … Read more