What amount of heat is required to raise the temperature of a substance?
Liquid methanol has a heat capacity of 81.6 J/(K mol). How much heat is required to raise the temperature of 20.0 g of liquid methanol from 25 C to 40.0 C?
Solution Preview
Remember what your units are: J/(K mol).
81.6 J are required to raise the temperature of one mole of methanol by one degree. Therefore if you have ...
Solution Summary
Remembering our units J/K mol we determine how many moles are in 20g of methanol. How much heat required can be determined by: specific heat x # degrees x # moles. Full solution. 125 words.
... Specific heat capacity (or specific heat). Specific heat capacity of a substance is the amount of heat energy required to raise temperature of unit ...
... The energy required to raise the temperature of a substance... is specific to the substance and the amount of the ... This is called the specific heat capacity (s) of ...
...Heat required to raise the temp. ... Total heat required = Q1+Q2+Q3 = 1450 + 1740 + 870 = 4060 kJ. ... from a gas to a solid by extracting a constant amount of energy ...
... Thus to raise the temperature of water from 0 degrees Celsius to 50 degrees Celsius ie a change of 50 degrees Celsius the amount of heat required is mx ...
... 1730 J As the specific heat capacity 's' is the amount of energy required to raise... of the substance per unit increase in temperature, the heat absorbed by ...
... current = 2.46 x 105 A (0.69) Actual Amount of current ... What current flow is required for this electroplating if the ... The heat of combustion of propane is 49.9 kJ ...
... via the feedback section if you need further clarification ... and because of the exchange of heat between the ... high albedo reflects a significant amount of incoming ...
... remaining product in the tube in case you need to do ... C CH3 CH3 CH2 C CH2 CH3 CH C CH3 heat CH3. The relative amounts of products formed from these two alcohols ...
... of hydration which increase (but not quantitatively) with heating. ... the solid and include a small amount of Na2CO3 ... to precipitate out any trace amounts of copper ...