Answer:
THE SPECIFIC HEAT OF ALUMINIUM IS 0.900 Jg^-1K^-1
Explanation:
To solve this question, follow the following steps listed below:
1. Write the formulae for heat change in a reaction
Heat = m c ΔT
2. Write out their values and convert to standard units.
m = mass of aluminum = 18.3g
Heat = 481 J
T2 = final temperature = 46.6°C = 273 + 46.6 = 319.6 K
T1 = initial temperature = 17.4 °C = 17.4 + 273 K = 290.4K
C = specific heat capacity of aluminum = ?
3. Solve for the specific heat of aluminium
c = Heat / m ΔT
c = 481 J / 18.3 g * ( 319.6 - 290.4) K
c = 481 / 18.3 * 29.2
c = 481 / 534.36
c = 0.900 Jg^-1K^-1
In conclusion, the specific heat capacity of aluminum is 0.900 Jg^-1K^-1.
Answer:
<em>If an object is denser than water it will float</em>
Explanation:
When a solid melts, heat is required to break apart the bonds of the tightly packed molecules. As energy is added to the solid, the motion of the molecules speed and are able to move around more freely.
A barometer is a tool, not a variable. A barometer measures barometric or air pressure, which is a variable that meteorologists use to predict the weather.
