M2S10 – States of Matter and Structures


35

States of Matter and Structures

1 / 10

Which of these elements has a relatively low boiling point (below 500 oC)?

2 / 10

Which of these compounds has a relatively low melting point (below 500 oC)?

 

3 / 10

Which of these compounds consists of a giant structure of ions?

4 / 10

In which of these elements are the atoms or molecules closely packed but free to move around sliding past each other at room temperature?

(i) mercury

(ii) argon

(iii) bromine

(iv) iodine

5 / 10

Which of these processes are endothermic?

(i) water freezing

(ii) ethanol evaporating

(iii) steam condensing

(iv) wax melting

6 / 10

The pressure of a gas results from:

7 / 10

According to the ideal gas equation, pV = nRT, for a fixed amount of gas:

(i) p is proportional to T at constant volume

(ii) pV is a constant at constant temperature

(iii) V is proportional to T at constant pressure

(iv) RT is a constant at constant volume

8 / 10

Which of these gases behaves very much like an ideal gas at room temperature and pressure?

(i) helium

(ii) oxygen

(iii) hydrogen

(iv) butane

9 / 10

What is the volume of 0.020 mol oxygen at 27oC and 100 kPa pressure given that the value of the gas constant R = 8.31 J mol-1K-1?

10 / 10

What is the temperature of a 12dm3 sample of gas that contains 7g of nitrogen if it is held at a pressure of 300kPa pressure given that the value of the gas constant R = 8.314 J mol-1K-1?:

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