SECTION B
Answer any three(3) questions
a)Distinguish Between (i) Boiling and Evaporation (2)
(ii) Heat and temperature (2)
b) copy and complete the table below.
(3)
Type of thermometer
Thermometric property
(i)_______________________
Volume expansion of a liquid
(ii)______________________
_____________________
(iii)Resistance thermometer
_____________________
(iv)______________________
_____________________
(c)The figure shows a thermocouple used to measure the temperature of the candle flame.
a).Name component Y.
(1)
b).Suggest metal X.
(1)
c).Explain how a thermocouple is used to measure temperature(2)
d).Explain why is it capable of measuring very high temperature (2)
e) Explain why a clinical thermometer has a:
i. Bulb made of thin glass,(1)
ii. Small bulb,(1)
iii. Constriction,(1)
iv. Short range.(1)
f)A gas at 102 oC has a pressure of 5000 N/m2. If the temperature is reduced to 27 oC, what will
be the pressure of the gas? (3)