What is the enthalpy change (KJ) during the process in which 200.0 g of water at...
What is the enthalpy change (KJ) during the process in which 200.0 g of water at 60.0 Celsius is cooled to -25 Celsius? The specific heats of ice, and liquid water, and 2.03 J/g-K, and 4.18 J/g-K, respectively. For H 2 O, delta H fus = 6.01 kJ/mol
Homework Answers
The enthalpy change during the freezing process is given by
enthalpy change = (msdDT)WATER + (n*DHfusion) +
(m*s*DT)ice
= (200*4.18*(60-0)+ (200/18)*(-)6.01*10^3) +
200*2.03*(0-(-25))
= -6.4677 KJ
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What is the enthalpy change (KJ) during the process in which
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21. What is the enthalpy change (KJ) during the process in which 200.0 g of water...
21. What is the enthalpy change (KJ) during the process in which 200.0 g of water at 60.0 °C is cooled to -25°C? The specific heats of ice, and liquid water, and 2.03 J/g-K, and 4.18 J/g-K, respectively. For H O, AH = 6.01 kJ/mol 2 ***"fas A. 127 B. -127 C. 117 D. -117
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21. What is the enthalpy change (KJ) during the process in which 200.0 g of water at 60.0 °C is cooled to -25°C? The specific heats of ice, and liquid water, and 2.03 J/g-K, and 4.18 J/g-K, respectively. For H,O, AH = 6.01 kJ/mol A. 127 B. -127 C. 117 D. -117
21. What is the enthalpy change (KJ) during the process in which 200.0 g of water at 60.0 °C is cooled to -25°C? The specific heats of ice, and liquid water, and 2.03 J/g-K, and 4.18 J/g-K, respectively. For H O, AH = 6.01 kJ/mol 2 ***"fas A. 127 B. -127 C. 117 D. -117
23. The enthalpy change for converting 10.0 g of water at 25.0eC to steam at 135.0eC is kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H20, AHius = 6.01 kJ/mol, and AHvap = 40.67 kJ/mol ku. 24. The enthalpy change for converting 1.00 mol of ice at -50.0eC to water at 70.0e is The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K,...
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