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How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22.0°C to 55.0°C, if the specific heat of aluminum is 0.90 J/g°C? Is this process endothermic/exothermic?
Heat=(m)(c)(change in T)Heat=(10)(0.9)(55-22)Heat =297J endothermic
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How much heat in joules must be added to 835.5 G of solid iron to raise its temperature by 39K the specific heat capacity of solid iron is 0.444 J/G•K
Q=mc∆T= 835.5 x 0.444 x 39 = 14 458,86 J.
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How much heat in joules is needed to increase the temperature of a 2.25 Mol sample of solid iron from 26.80 Celsius to 39.50 Celsius the specific heat capacity of solid iron is 0.444 J/G•K
Q=mc∆T = 2.25 x 56 x 0.444 x (39.5-26.8) = 710,4888 J.
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Aluminum has a specific heat of 0.900 J/g·°C. How much energy is required to raise the temperature of 140. g of aluminum from 10.0°C to 232.0°C? ---------------kJ
Increase in temperature = 232-10 = 222°CQ = Mc∆T= 140 × 0.9 × 22227972J= 27.972 kJ
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Aluminum has a specific heat of 0.900 J/g·°C. How much energy is required to raise the temperature of 140. g of aluminum from 10.0°C to 232.0°C? Answer in kJ
Increase in temperature = 232-10 = 222°CQ = Mc∆T= 140 × 0.9 × 22227972J= 27.972 kJ
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how many ml of water at 10 degrees celsius (2 significant figures) must be added to 75 ml of water at 35 degrees celsius to obtain a final temperature of 19 degrees celsius?
Q=mCΔT ; where m is the mass of the substance, C is the specific heat of the substance, and ΔT is the difference in temperature.35 -19 = 1619-10 = 916...
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The specific heat of aluminum is 0.902j/g.°C.How much heat is absorbed by an aluminum pie tin with a mass of 473g to raise its temperature from room temperature (23.00°C)to oven temperature(375°F
375oF =(375-32)*(5/9)oC=190.5oCIncrease in temperature =190.5-23=167.5Required Heat= 0.902*167.5*473 J=71463.205 J
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How much heat( in joules) is needed to increase the temperature of a 1.00 mol sample of solid iron from 23.40 Celsius to 44.00 Celsius? The specific heat capacity of solid iron is 0.444 J/g • k
Heat( in joules) needed=209.346Joules
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Define heat capacity; molar heat capacity and specific heat capacity of a substance and give relations between them.
Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to be supplied to a given mass of a material to produce a...
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how much heat is needed to warm 250 g of water from 22 degrees C to 98 degrees C, given the specific heat capacity of water at 4.18J/g degree C?
q = m x C xΔT q = 250g x 4.18J/goC x (98 – 22)oC q = 79.4 kJ
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