The specific heat of copper is 0.093 cal/gCo, and the specific heat of aluminum is 0.22 cal/gCo. The amount of energy applied to equal masses, say, 50.0g of copper and aluminum, will result in a) A higher temperature for copper. b) A higher temperature for aluminum. c) The same temperature for each metal. d) Unknown results.

The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9°C temperature increase?

Equal masses of substance A at 98.1°C and substance B at 26.2°C are placed in a well-insulated container of negligible mass and allowed to come to equilibrium. If the equilibrium temperature is 77.4°C, which substance has the larger specific heat? a) substance A     b) The answer depends on the exact initial temperatures. c) More information is required. d) The specific heats are identical.

The initial temperature of 150 g of ice is -20°C. The spe-cific heat capacity of ice is 0.5 cal/g.C° and water's is1 cal/g•C°. The latent heat of fusion of water is 80 cal/g.a.How much heat is required to raisethe ice to 0°C andcompletely melt the ice?b. How much additional heat is required to heat the water(obtained by melting the ice) to 25°C?C.What is the total heat that must be added to convert the80 g of ice at-20°C to water at +25°C?d. Can we find this total heat simply by computing howmuch heat is required to melt the ice and adding theamount of heat required to raise the temperature of 80 gof water by 45°C? Explain

Q12. (a) Name any four types of radiation emitted by the sun? (b) A solar hot water system receives solar energy at the rate of 10.5 MJm2 per day. The efficiency of the solar collector is 0.8 and it has an area of 6.0 m2. The collector contains 0.250 m3 volume of water and the density of water is assumed to be 1000 kgm 3. The specific heat capacity of water C 4200 J/Kg. C. (i) Calculate the mass of water? (ii) Estimate the temperature rise of the water in the tank during the day.

0.4 kg water is at room temperature 23 degrees in an aluminum container. An unknown metal with 0.5 kg mass is placed inside the water raising its temperature to 40 degrees. A)What is the specific heat of the unknown metal. B) Would the equilibrium temperature greater, less or the same if the system was not properly isolated.