Question

in general which group of metals, nonmetals, organic compounds and aqueous solutions has the lowest specific heat

QUESTION 3 If you put an object at room temperature into boiling water at 100.°C, which is continually heated by a Buns burner, what temperature will the object achieve in an hour? Assume that the water does not completely evaporate and there is enough water in the beaker to keep the object submerged. the temperature of the boiling water (100°C) Much lower than the temperature of the boiling water (100°C) higher than the temperature of the boiling water (100PC) There is not enough information to tell. QUESTION 4 If you put an object at room temperature into hot water at 100.°C, what approximate temperature range will the object achieve in an hour? (This question is different from Question #3) the temperature of the hot water OLower than the temperature of the hot water. The temperature change will depend on the type of material and size of the object. Lower than the temperature of the hot water. The change will depend on the type of material of the object. Lower than the temperature of the hot water. The change will only depend on size of the object. / QUESTION 5 Aluminum has a specific heat of 0.900 Jrg-°C and water has a specific heat of 4.184 J/g-'C. Considering that you have a piece of aluminum and a beaker of water of the same mass, if you apply 100. J of heat to each material separately, will aluminum achieve a higher temperature, assuming that the beaker does not absorb heat? True False

Answer 1

In general, metals are good conductors of heat and have low specific heat capacities.

(3) Usually, when an object at room temperature is put into boiling water then heat is transferred from water to the object to obtain a thermal equilibrium. The final temperature is usually lower than the initial high temperature of boiling water but higher than room temperature. Here, heat is applied continually. As a result, the temperature of boiling water will be 100 degree C and excess heat will be utilized as latent heat of vaporization to evapoarate water. The temperature of the object will gradually increase depending on the specific heat capacity of the material of the object. The specific heat value of the object is unknown.

Therefore, more information is needed to determine the temperature of the object after an hour.

(4) When an object at room temperature is put into boiling water then heat is transferred from water to the object to obtain a thermal equilibrium. The final temperature is usually lower than the initial high temperature of boiling water but higher than room temperature. The change in temperature depends on the specific heat capacity of the material of the object.

Therefore, the temperature will be lower than the temperature of hot water and the change will depend on the type of material of the object.

(5) We know, Heat applied = mass x specific heat x Change in temperature

For this reason, when equal amount of heat is applied to a piece of aluminum and a beaker of water of same mass then the change in temperature depends totally on the specific heat values.As a result, the piece of aluminum with lower specific heat will achieve a higher temperature.

This is true.