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States of Matter
Water is a liquid while hydrogen sulphide is a gas. Explain.
The intermolecular forces, namely hydrogen-bonding, in H2O are stronger than in H2S. This is because in H2O the bonds are more ionic and there is a larger partial positive charge on H and partial negative on O, so neighboring H2O molecules can bind to each other and cause a stronger network of bonded molecules, thus requiring more energy (higher temperature) to break these bonds and form a gas (where intermolecular forces no longer act).
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What is atmospheric pressure?
Which state of matter has a definite volume but no definite shape?
What is absolute temperature?
What is the absolute zero temperature?
Can absolute zero temperature be attained for a gas?
How pressure of a given sample of gas is related to absolute temperature at constant volume?
How is the pressure of a gas related to the number of molecules of the gas at constant temperature and volume?
What is standard (or normal) temperature and pressure (STP)?
What does SATP stand for? Define it.
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