(i) Atmospheric pressure + pressure due to mercury = 76 + 24 = 100 cmHg
(ii) $P_1V_1 = P_2V_2$ = V2 = $\frac{76 \times 15}{100}$ = 11.4 cm
johnmulu answered the question on May 29, 2017 at 07:51
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Figure 7 shows a horizontal tube containing air trapped by a mercury thread of length 24 cm. The length of the enclosed air column is 15 cm, The atmospheric pressure is 76 cmHg.
(Solved)
Figure 7 shows a horizontal tube containing air trapped by a mercury thread of length 24 cm. The length of the enclosed air column is 15 cm, The atmospheric pressure is 76 cmHg.
State the pressure of the enclosed air.
Date posted:
May 29, 2017
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Answers (1)
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Figure 6 shows a graph of volume against temperature for a given mass of gas.
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Date posted:
May 29, 2017
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Answers (1)
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Date posted:
May 29, 2017
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Answers (1)
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The graph in Figure 11 shows the relationship between volume and temperature for the experiment.
(Solved)
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Date posted:
May 29, 2017
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Answers (1)
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Figure 10 shows a set up to investigate the relationship between temperature and volume for a certain gas.
(Solved)
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Date posted:
May 29, 2017
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Answers (1)
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(Solved)
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Date posted:
May 29, 2017
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Answers (1)
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(Solved)
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Date posted:
May 29, 2017
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Answers (1)
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(Solved)
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Date posted:
May 29, 2017
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Answers (1)
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(Solved)
Figure 7 shows an experiment set-up that may be used to investigate one of the laws. The glass tube has a uniform bore and it is graduated in millimeters.
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Date posted:
May 29, 2017
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Answers (1)
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Figure 5 shows a set up that ,a set up that may be used to verify Charles' law.
(Solved)
Figure 5 shows a set up that ,a set up that may be used to verify Charles' law.
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Date posted:
May 29, 2017
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Answers (1)
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(Solved)
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Date posted:
May 27, 2017
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Answers (1)
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(Solved)
Figure 8 shows a graph of the variation of temperature with time for a pure substance heated at a constant rate.
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(a) BC;
(b) DE
Date posted:
May 27, 2017
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Answers (1)
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Figure 8 shows a set-up of apparatus set in an experiment to determine the specific latent of fusion of ice.
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Figure 8 shows a set-up of apparatus set in an experiment to determine the specific latent of fusion of ice.
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Date posted:
May 27, 2017
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Answers (1)
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Figure 4 shows a graph of temperature against time when pure melting ice at 0oC is heated uniformly.
(Solved)
Figure 4 shows a graph of temperature against time when pure melting ice at 0oC is heated uniformly.
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Date posted:
May 27, 2017
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Answers (1)
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You are provided with the apparatus shown in fig. 9 and a stop watch.
(Solved)
You are provided with the apparatus shown in fig. 9 and a stop watch.
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Date posted:
May 27, 2017
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Answers (1)
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Figure 11 shows the features of a domestic refrigerator. A volatile liquid circulates through the capillary tubes under the action of the compression pump.
(Solved)
Figure 11 shows the features of a domestic refrigerator. A volatile liquid circulates through the capillary tubes under the action of the compression pump.
(i) State the reaction for using a volatile liquid.
(ii) what is the purpose of double wall?
Date posted:
May 27, 2017
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Answers (1)
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Fig. 11 shows the variation of temperature,$\theta$, with time t,when an immersion heater is used to heat certain liquid. Study the figure and answer questions 22 and 23.
(Solved)
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State the reason for the shape of graph in the section labeled BC
Date posted:
May 27, 2017
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Answers (1)
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(Solved)
Figure 3 shows two aluminium containers, A and B placed on a wooden table. A and B have equal volumes of hot water initially at the same temperature.
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Date posted:
May 27, 2017
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Answers (1)
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(Solved)
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Date posted:
May 27, 2017
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Answers (1)
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(Solved)
Figure 5 shows the circuit used to charge a capacitor C.
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Date posted:
May 27, 2017
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Answers (1)