46 calories (or 192, 464 joules) for each Celsius degree.
A: Energy is measured in joules and kilojoules. One joule is the amount of energy needed to lift 100 grams to 1 kiliogram.
0.131 joules/gram'C x 1.3 grams x (46-25)'C = 3.5763 joules
Assuming the water is liquid, the specific heat is about 4.186 joule/gram·°C, so to heat 46 grams of water would take about 192.556 joules/°C. The specific heat of ice is about 2.100 Joules/g·°C so heating 46 g of frozen water would take about 96.6 joules/°C. The specific heat of steam is about 2.020 Joules/g·°C so heating 46 g of water vapor would take about 92.2 joules/°C.
You cannot do so directly. They measure completely different things. Grams is a measurement for mass while kcal is a measurement of energy (or something like that). The point is they are two different measuring metrics for two different metrics. It will be like asking how to convert inches into minutes
Specific heat of lead = 0.160 J/gC 45 pounds (454 grams/ 1 pound) = 20430 grams Use. q(Joules) = mass * specific heat * change in temp. q = (20430 grams)(0.160 J/gC)(100 C - 62 C) = 1.2 X 10^5 Joules ------------------------- or ------------------------- 1.2 X 10^5 Joules (1 calorie/4.184 Joules) = 29688 calories
46 calories (or 192, 464 joules) for each Celsius degree.
419.1 Joules are required to heat one gram of liquid water from 0.01 degC to 100 deg C. So the answer is 419.1*46 = 19278.6
96.3 Joules
Assuming no state change:ΔH = mCΔTm = 4.60 gC = 4.184 J/(g * K)ΔT = 100.0 KΔH = 1920 J = 1.92 kJ
2,26 Kj are necessary
Using 2260 J/g as the ∆Hvaporizationq = 46.0 g x 2260 J/g = 103,960 J = 104 kJ (to 3 sig. figs)
The heat of vaporization is about 2258 joules/gram46 x 2258 = 103,868 J ~ 103.9 kJ(Using the rounded value 2260 joules per gram, about 104 kJ)it is already at boiling point so in theory zero energy is required.I think the question is asking what energy is required to free the water from its liquid state to the vapour state.At 101325Pa, (1 atmosphere in old money), the latent heat of evaporation of water is 2256.7 J/g.So 2256.7 * 46 = 103808 Joules
No, a Joule is a unit of energy. Mass is measured in kilograms (or grams)
A: Energy is measured in joules and kilojoules. One joule is the amount of energy needed to lift 100 grams to 1 kiliogram.
The object's kinetic energy is 2,500 joules.
42 J
0.131 joules/gram'C x 1.3 grams x (46-25)'C = 3.5763 joules