Physical Sciences Break 1.0

Pressure-temperature relation

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0 The pressure of a gas is directly proportional to its temperature, if the volume is kept constant (Figure Figure 7). Recall that as the temperature of a gas increases, so does the kinetic energy of the particles in the gas. This causes the particles in the gas to…

Informal experiment 1: Le Chatelier’s principle

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0 Informal experiment 1: Le Chatelier’s principle Aim To determine the effect of a change in concentration and temperature on chemical equilibrium Apparatus 0,2 mol.dm−3 purple CoCl2 in ethanol solution, concentrated HCl, water test tube, tongs ice-bath, water-bath, hot-plate or bunsen burner Method Place the water bath on the hot-plate and heat. During…

Rates of reaction and factors affecting rate

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0General experiment 2: Surface area and reaction rate Marble (CaCO3) reacts with hydrochloric acid (HCl) to form calcium chloride, water and carbon dioxide gas according to the following equation: CaCO3(s)+2HCl(ℓ) → CaCl2(s)+H2O(ℓ)+CO2(g) Aim To determine the effect of the surface area of reactants on the average rate of the reaction. Apparatus 2 g marble chips,…

Molecular Structure

Waves and Sound

Waves and Sound Exercise 1 1 1.1 Explain the difference between longitudinal and transverse waves and give an example of each. 1.2 It is possible to represent a longitudinal wave by drawing a graph having the wave-form of a transverse wave. Explain carefully what it is that you are plotting on the x and y…