Mark N: A silver bar of length 30 cm and cross sectional area 1.0 cm^2 is used to transfer heat from a 100 degrees C reservoir to a 0 degree C block of ice. How much ice is melted per second? (For silver, k = 427 (SI units). For ice, Lf = 334 000 J/kg.)

Dan P: please show me how to do this problem.
A 1000g block of aluminum releases 27.090 kilojoules as it cools from 55 degrees C to 25 degrees C. What is the specific heat of aluminum?

toocool: A 134 g stainless steel ball bearing (sp ht = 0.50 J g-1 °C-1) at 525°C is dropped onto a large block of ice at 0°C, what mass of liquid water will form? (H°fusion = 6.01 kJ/mol H2O(s))

kattypillar5: A well-insulated container holds 1.50 kg of water at 22.0°C. A 2.98 kg copper block is heated in an oven, then completely submerged in the water. When the liquid water and the copper block reach thermal equilibrium, their common temperature is 42.0°C, but 0.0100 kg of the water has become water vapor at 100°C. [...]

ICEMAN: he specific heat of iron metal is 0.450 J/g .K

lzzrd87: Calculate the specific heat capacity of the metal in J/g °C.

Anthony: (a)A metal cylinder with a volume of 5.25 L contains 3.22g of He(g) and 11.56g of N2(g) at 15 degrees C.
(i) Calculate the total pressure in the cylinder.
(ii) Calculate the partial pressure of N2(g) in the cylinder.
(b) A 1.50 L container holds a 9.62g sample of an unknown [...]

preteargraphic: How many Calories (note capital C) are required to raise the temperature of a can of diet cola (12 fluid ounces) from refrigerator temperature to body temperature? What percentage of the energy (Calories) in the can of diet cola is required to do this? Assume, for the moment, that the diet cola has the [...]

Jane Y: Using the reaction scheme below:
H2/Catalyst
R – COOH → [...]

glamourlolly: The building block of silicate minerals is the
a.trigonal-planar SiO3 unit.
b.octahedral SiO6 unit.
c.tetrahedral SiO4 unit.
d.bent SiO2 unit.
e.linear SiO unit.