Question

7/15
UCT ONLINE
HIGH SCHOOL
PHYSICAL SCIENCES
Question 1.7 (2 marks]
Choose the equation relevant to a situation where it is only the amount of gas
that remains constant but the gas is found in different conditions of
temperature, volume and pressure.
A. Avogadro's equation
B. The General Gas Equation
C. Gay-Lussac's equation
D. Charles's equation
Question 1.8 (2 marks]
ONE mole of methane (CH) and ONE mole of Magnesium Hydroxide (MgSO) will
have the same
A. number of atoms
B. mass
C. molar mass
D. number of molecules
Question 1.9 (2 marks]
A necklace has 6 g of diamond in it. What is the number of atoms in it?
A. 6,02 x103
B. 12,04 x103
C. 3,01 x102
D. 1,003 x10
Question 1.10 [2 marks]
When a lake freezes, it freezes from top to bottom. What is the property of water
that is responsible for this phenomenon?
A. Capillarity
B. Surface tension
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Answer 1

C. The high specific heat capacity of water