How much heat is required to raise the temperature of 250 mL of water from 20 o C to 35 o C ? How much heat is lost by the water as it cools back down to 20 o C

A 450 mL cup of coffee is too hot to drink at 91C, so 100.0 mL of cold water at 6.5 C is added to cool it off. What is the final temperature of the drink?

A 96g iron bar at 100°C is placed in water so that it looses 350 J of heat. If the specific heat capacity of iron is 0.450 J/gºC, to what final temperature will the iron bar cool? BIVI

A new liquid substance has been discovered that freezes at -23°C. A scientist poured the liquid (which was at -23°C) Into a 0.6 kg cup (Coup = 793 J/kg-K) which caused some, but not all, of the liquid to freeze (only 0.216 kg of the liquid froze). As a result, the liquid lost 40,000 J of heat until thermal equilibrium was reached. Determine the latent heat of the substance & the Initial temperature of the cup. Topul °℃

Calculate the amount of heat needed to change the temperature of 2 kg of steam from 110 0C to -4 0   Use the following in working this question: Specific heat of water = 1 kcal/kg.0c Specific heat of ice = 0.5 kcal/kg.0c Specific heat of steam = 0.5 kcal/kg.0c Latent heat of fusion = 80 kcal/kg Latent heat of vaporization = 540 kcal/kg

What is the ratio of the energy required to warm 125 g of Ice (0.0 \deg C) to body temperature (37 \deg C) to warming the same amount of water through the same temperature change? Answer format is the number Eice/Ewater = (2 significant figures) Latent Heat of Fusion of Water: 335, 000 J/kg Specific Heat Capacity of Water: 4186 J/kg/\deg C