Δ°t = Energy
-- Mass * sp ht
In order to find the final temperature (if problem is asking for this), add or subtract the original temperature and the new temperature together.
Tf = original temperature +/- new temperature
If energy is added, the temperatures will be added together; if energy is removed, the temperatures will be subtracted.
Finding MassDivide energy by specific heat multiplied by temperature change.Mass = Energy
------- sp ht * Δ°t
Finding Specific HeatDivide energy by mass multiplied by temperature change.Sp ht = Energy
------- Mass * Δ°t
Converting Form of Energy (joules, kcal, and cal)Sometimes a problem will have E be shown in cal/g°C or kcal/g°C but will be asking for Joules or even vice versa. This means a conversion has to take place. Cal --> Joules and Joules --> cal-Calories (Cal) --> Joules (J)Multiply # cal by 4.184 Joules (J).
Conversion Factor
# cal x 4.184 J = Joules
---------- 1 cal
1 cal = 4.184 Joules
-Joules (J) --> Calories (Cal)
Divide # Joules (J) by 4.184
Conversion Factor
# J x 1 cal = cal
--- 4.184 J
1 Joule = 0.239005736 cal
Kcal --> Joules (J) and Joules (J) --> Kcal-Joules --> kcal (Joules --> cal --> kcal)Divide # J by # kcal multiplied by 103
Conversion Factor
# Joules x 1 cal - * - 1kcal = kcal
---------- 4.184J -- 103 cal
1 kcal = 4,184 Joules <--> 1 Joule = 0.000239005736 kcal
-Kcal --> Joules (J) (Kcal --> cal --> Joules)
Multiply # kcal by 103 cal by 4.184J
Conversion Factor
# kcal * 103 cal * 4.184J = Joules (J)
----------- 1 kcal --- 1 cal
Another relationship that is good to understand: 1 kcal = 1000 (103) cal <--> 1 cal = 0.001 (10-3) kcal
False
heat constant = mass * specific heat capacity * temperature change
change in temperature does not effect specific heat. for example,specific heat of water is 4.14 j/g.k at any temperature
specific heat capacity
The melting temperature properties generally change as you go from left to right in the periodic table by no specific trend/no detail pattern.
False
A substance with a high specific heat will easily change temperature.
A substance with a high specific heat will easily change temperature.
specific heat
Density and specific internal energy are two physical properties that change with temperaturea change in temperature.
Heat which causes a change in temperature of substance is called specific heat.
Yes. Specific heat capacity is the amount of heat energy required to change the temperature of the material, so a material with high specific heat needs a lot of heat energy for its temperature to go up.
"specific heat"
heat constant = mass * specific heat capacity * temperature change
change in temperature does not effect specific heat. for example,specific heat of water is 4.14 j/g.k at any temperature
Yes, enthalpy = mass x specific heat x change in temperature.
It is the amount of energy required to change the state of 1kg of a substance with no change in temperature.