The melting point of calcium is 851 oC, its solid-state specific heat (Csolid) is 0.632 J/goC, and its heat of fusion (ΔHfus) is 233 J/g. How much energy, in joules, is required to melt 120.0 g of calcium at each of the following initial temperatures? (molar mass Ca is 40.08 g/mole)   a.) its melting point b.) 35.0 oC c.) 685 oC below its melting point

Q: How many grams of solid water can be melted with 1.55kJ of energy?

A: Given: Molar heat of fusion of water(∆Hfus ) = 6.01 kJ/mol  Heat energy(q) = 1.55 kJ

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A: Conduction: This mode of heat transfer occurs when solid materials or object are the medium of heat…

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Q: How much heat, in joules, must be added to a 75.0 g block of a metal alloy with a specific heat of…

A: Given, Mass of the substance, m = 75.0 g Initial temperature, T1 = 25 oC Final temperature, T2 = 775…

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A: The schematic diagram of the phase transition is given below,

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Q: A common technique for forming metal electrodes on electronic devices is evaporation in a vacuum. In…

A: Given Data: The enthalpy of vaporization (ΔHvap) for gold = 310.9 kJ/mol given mass of  liquid gold…

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A: Supplied energy

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A: Formation reaction :-  The chemical equation which represents the formation of one mole of a…

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A: The required relation is given below.

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A: This problem is solved by means of the rules of unitary method.

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A: Condensation: It is the transformation of water vapor into liquid. It's the opposite of evaporation,…

Q: released

A: Moles of C = ( mass / molar mass of C )  Moles of C = ( 0.8g / 12.01gmol-1 )  Moles of C = 0.067 mol…