z.hopts) How much energy(in kJ) must be removed from 71.8g of liquid water at 25.7°C to...
How much heat must be removed from 456 g of water at 25.0 degree C to change it into ice at -10.0 degree C? The specific heat of ice is 2090 J/kg K. the latent heat of fusion of water is 33.5 times 10^4 J/Kg, and the specific heat of water is 4186 J/kg K.
How much energy in kilojoules is needed to heat 5.00 g of ice from -36.1 °C to 36.6 °C? Take the heat of fusion of water to be 6.01 kJ/mol, the molar heat capacity of ice to be 36.6 J/(K·mol) and the heat capacity of liquid water to be 75.3 J/(K·mol).
How much energy in kilojoules is needed to heat 5.00 g of ice from -36.1 °C to 36.6 °C? Take the heat of fusion of water to be 6.01 kJ/mol, the molar heat capacity of ice to be 36.6 J/(K·mol) and the heat capacity of liquid water to be 75.3 J/(K·mol).
Ice at 0.0 °C is used to cool water. What is the minimum mass of ice required to cool 325 g of water from 30.5 °C to 4.0 °C? (Heat of fusion = 333 J/g; specific heat capacities ice = 2.06 J/gK, liquid water = 4.184 J/g-K) a. 108 g b. 125 g c. 325 g d. 605 g e, 1.75 ×104 g 22.
How much energy in kilojoules is needed to heat 5.30 g of ice from -10.0 ∘C to 27.5 ∘C? The heat of fusion of water is 6.01 kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.4 J/(K⋅mol) for liquid water. Please explain each step! Thank you!
6. (review) How much heat must be absorbed by 70.0 g of ice at -10.0 C to transform it into 70.0 g of liquid water at 40.0 °C? The heat of fusion of ice is 333 kJ/kg. The specific heat of water is 4190 J/kg K, and the specific heat of ice is 2028 J/kg K
How much heat (in kJ) is needed to convert an 18.0-g cube of ice at 0.0 oC into liquid water at 20.0 oC? For water (H2O): heat of fusion = 6.02 kJ/mol, specific heat capacity (liquid) = 4.18 J/g oC. a) 1.61 kJ b) 7.52 kJ c) 89.6 kJ d) 518 kJ
2. 44.0 g of ice at –20.0 °C is mixed with 325 g of water at 32.1 °C. Calculate the final temperature of the mixture. Assume that no energy in the form of heat is transferred to the environment. (Heat of fusion = 333 J/g; specific heat capacities: ice = 2.06 J/g-K, liquid water = 4.184 J/g-K) ***HINT: Remember that ice melts at 0 °C***
How much heat (in kJ) is required to convert 431 g of liquid H2O at 23.6°C into steam at 148°C? (Assume that the specific heat of liquid water is 4.184 J/g·°C, the specific heat of steam is 2.078 J/g·°C, and that both values are constant over the given temperature ranges. The normal boiling point of H2O is 100.0°C. The heat of vaporization (ΔHvap) is 40.65 kJ/mol.)
How much heat (in kJ) is released when 125.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water is 40.67 kJ/mol, the enthalpy of fusion for water is 6.01 kJ/mol, the molar heat capacity of liquid water is 75.4 J/(mol ∙ °C), and the molar heat capacity of ice is 36.4 J/(mol ∙ °C).